Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallOutdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchSome links on this page are affiliate links: if you buy through them we may earn a commission, at no extra cost to you.
Self-defense gadgets can help you notice a threat, attract attention, create distance, or get help—but none guarantees protection. The most useful choice is one you can legally carry, reach quickly, and operate under stress. This U.S.-focused guide compares ten tools for different situations; check current state and local rules, plus any school, workplace, airline, or venue restrictions, before buying or carrying one.
These devices do different jobs. Pepper spray and a flashlight may be useful while walking; a door wedge can delay entry to a room; a car escape tool is for a vehicle emergency, not an assault. You do not need all ten. Start with the risk you want to address and favor a plan that helps you leave, alert others, or call for help over one that requires confronting someone.
Quick guide: match the tool to the situation
| Need | Options to consider | Main limitation |
|---|---|---|
| Create distance outdoors | Pepper spray or gel | Wind, aim, expiration, and legal restrictions |
| Attract attention | Personal alarm or flashlight | Someone must hear or notice it; neither physically stops an attacker |
| Everyday carry | Flashlight, alarm, or lawful pepper spray | It must be accessible and familiar |
| Secure a room from inside | Door wedge or local door alarm | Protects only a particular entry point and may impede exit |
| Call for help without reaching a phone | Emergency alert wearable | Battery, coverage, and possibly a subscription |
| Prepare for a vehicle emergency | Seat-belt cutter/window tool | Glass type and storage location matter |
| See who is at the door | Video doorbell or camera | Detection is not intervention; connectivity and plans may matter |
| Consider an electric-defense device | Projectile CED or contact stun gun | Training, serious risk, and legal complexity |
1. Pepper spray or pepper gel
Pepper spray uses oleoresin capsicum, an irritant derived from chili peppers. Its purpose is to disrupt a threat long enough to get away—not to win a fight. SABRE’s product range illustrates common formats, including keychain units and practice canisters.
Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteA stream is less prone than a broad fog to spread through an area, but calls for more accurate aim. Fog or cone patterns cover more space but may affect the user and bystanders. Gel can reduce airborne blowback, though it still needs to be directed at the threat and wind remains a consideration.
#1 Best Overall
- Safety First: Unlike traditional pepper sprays or tasers, the Fauxomor safety keychain alarm set for women provides a non-violent yet highly effective way to ensure your safety. When threatened, its 140-decibel loud siren birdie sound and high-intensity strobe LED light can distract and scare off attackers while quickly drawing attention from other people to help you.
- Effortless Use with Low Battery Alerts: No training or special skills are required. Just pull out the top pin to activate the safe alarm and strobe light, and reinsert it to turn them off. A smart low-battery warning will emit three “Di Di Di” beeps when the battery drops below 10%, reminding you to replace the batteries or device in time to ensure it's always ready for use.
- Peace of Mind: We take women's self-defense very seriously. This personal SOS protection device for women is made of high-quality and durable materials. Batteries are replaceable. It provides up to 60 minutes of continuous use and has an impressive battery life of up to 3 years, ensuring reliable protection whenever needed. One of the essential personal safety equipment for women.
- Compact and Stylish: The police-approved rape alarm combines practicality and elegance. Weighing only 0.95 oz and as small as a key, it's easy to carry and even TSA-compliant for air travel. The included lanyard lets you easily attach it to wallets, backpacks, keys, belt loops, or suitcases. With multiple fashionable color options, it can be easily matched with different styles. It is a perfect choice for safety-conscious women who value fashion.
- A Priceless Perfect Gift: Our protection keychain alarm for women provides safety for your loved ones, carry Fauxomor with you from day to night. Ideal for students, joggers, seniors, women, night shift workers, and people of all ages, it makes a thoughtful gift for occasions like Valentine's Day, Mother's Day, Christmas, birthdays, and more.
- Look for: a positive safety you can operate one-handed, a grip or orientation cue you can recognize by touch, a secure clip, a marked expiration date, and an inert practice canister if available.
- Limitations: wind or an enclosed space can contaminate you or others; stress can make aiming and releasing the safety difficult. A canister may lose pressure or expire, and it may not immediately stop a determined person.
- Before relying on it: read the instructions, practice accessing and holding it with an inert unit, check its date, and keep it somewhere reachable—not buried in a bag. Never test live spray around people or pets.
Best fit: someone who wants a compact option for outdoor carry, can legally carry it, and is prepared to practice. In a car, elevator, or small hallway, a spray may expose the user and others; an alarm, exit, or call for help may be a better first choice.
Federal law has a specific exemption concerning individual self-defense devices, including chemical mace; it does not override state or local rules. See the relevant U.S. Code provision and verify the rules where you live and travel. SABRE also gives general U.S. guidance while advising consumers to check local law; that manufacturer guidance is not legal advice.
2. Personal safety alarm
A personal alarm makes a loud sound when you pull a pin or press a button. It may startle someone, attract witnesses, or prompt you or another person to call for help—without requiring you to aim or physically engage.
Quick wins for a faster PC:
Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →- Look for: a large button or easy-to-pull pin, a simple reset, a secure keychain or clothing attachment, and a replaceable or rechargeable battery. A strobe can be a useful extra, not a substitute for the siren.
- Limitations: an alarm cannot stop an attacker, and there may be no one close enough to respond. Tiny controls can be hard to use under stress. Phone-linked alarms may depend on a charged phone, Bluetooth, cellular service, or an app.
- Before relying on it: learn how to activate and reset it, check the battery, and attach it where you can reach it promptly.
Best fit: a low-complexity option for a student, runner, commuter, older adult, or anyone who does not want to carry a weapon. Its value depends partly on whether anyone can hear it.
3. High-output flashlight
A good flashlight is first a practical visibility tool: it helps you see a path, identify an exit, and signal that you need help. It should not be treated as a guaranteed way to incapacitate someone. It can also earn its place in an everyday bag or pocket when there is no threat.
Rank #2
- NEW AND IMPROVED – When faced with danger, activate Birdie’s piercing 130dB siren and high-intensity flashing strobe light to draw attention and deter potential threats. Simply pull the top ring to unleash an immediate and powerful alert designed to startle and disorient an attacker. Whether you’re on a walk, commuting, or traveling, Birdie provides an added layer of security and peace of mind when you need it most.
- SLEEK, SIMPLE, & RELIABLE – Birdie’s modern design makes it effortless to use in any situation. Just pull the top ring to activate the alarm, and push it to deactivate. This personal safety device is reusable, ensuring you always have protection on hand. With an easily RECHARGEABLE battery that provides 120 minutes of continuous sound and light, Birdie is a long-lasting safety companion that’s always ready when you are.
- PROTECTION ANYTIME, ANYWHERE – Whether you’re heading out for a morning jog, walking your dog at night, navigating a busy campus, or traveling solo, Birdie is the perfect safety accessory. Compact and lightweight, it easily attaches to your keychain or bag, ensuring you feel confident and secure wherever life takes you—day or night, near or far.
- EMPOWERING & THOUGHTFUL GIFT – Birdie is more than just a safety alarm—it’s a symbol of empowerment. Give the gift of confidence and security to the women in your life, from daughters and mothers to friends, colleagues, and students. Thoughtfully designed for everyday safety, Birdie makes a meaningful and practical gift for any occasion.
- BUILT TO LAST, GIVING BACK – Every Birdie alarm is rigorously hand-tested to ensure durability and reliability when you need it most. We’re committed to making a difference—a percentage of She’s Birdie’s profits support partner organizations dedicated to women’s safety, shelter, and health. When you choose Birdie, you’re not just protecting yourself—you’re helping create a safer world for women everywhere.
- Look for: a reliable momentary-on switch, simple controls, a comfortable grip, a pocket clip, water resistance, and a battery you can keep charged or replace. A useful beam balances nearby coverage with reach across a path or parking lot.
- Limitations: a light can reveal your location; complex mode cycling can slow you down. Strobe modes are not a universal solution, and using a flashlight to strike someone can escalate a situation and cause serious injury.
- Before relying on it: practice switching it on without looking, check the battery, and choose a model whose controls you can use in the dark.
Best fit: an everyday-carry tool with ordinary uses as well as a role in situational awareness. Avoid buying one based on claims that it will “blind” an attacker.
4. Civilian TASER-style conducted-energy device
“TASER” and “stun gun” are not interchangeable terms. A projectile TASER-style conducted-energy device (CED) launches probes from a distance; a contact stun gun must touch its target. The Congressional Research Service overview explains the distinction and discusses federal classification and safety concerns.
The Tool Desk
Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →A projectile model is a specialized, higher-cost option for a person specifically seeking an electric-defense device and prepared to learn its controls and verify the law. Axon’s state guidance says its civilian devices can be sold and owned in all 50 states and Puerto Rico, while noting that local restrictions may apply; it describes additional requirements in Hawaii. Check current rules with relevant local authorities rather than treating a seller’s summary as a legal determination.
- Limitations: probes can miss or fail to make effective contact, clothing can interfere, and familiarity and aim matter. A device may not address multiple attackers, and the user must consider what happens if it is taken away. CEDs can cause serious injury or death; “less-lethal” does not mean harmless. The CRS also notes limits in the evidence base for civilian deployment.
- Before relying on it: study the manufacturer’s instructions, understand maintenance and any training requirements, check restrictions on possession and carry, and think through how you will get to safety after activation. Do not treat legal ownership as permission to use it in every confrontation.
Best fit: only for readers who specifically want this category and accept its cost, practice needs, medical risks, and legal complexity. It is not the default choice for most people.
5. Contact stun gun
A contact stun gun delivers an electrical discharge only when pressed against the target. Unlike a projectile CED, it does not create distance. That makes it a poor general-purpose fit for readers seeking a way to keep space between themselves and a threat.
Rank #3
- 【130dB Loud Siren & Strobe Light】 Experience unmatched safety with our personal safety alarm's ear-piercing 130 dB siren, designed to cause significant discomfort and deter aggressors effectively. Paired with a high-intensity flashing strobe light, it disrupts the attacker's vision, making it an essential tool for students, the elderly, children, women and night workers to signal for help anywhere, anytime.
- 【Low Battery Indicator & USB Rechargeable】With the low battery alert, TECKNET personal alarm keychain ensures you’re always prepared, up to 500 Days of standby time on a single charge, forget about battery replacements! Up to 90 minutes of alarm sound, 5 hours of flashing, and 3 hours of continuous light—doubling as an emergency light source. If anyone got lost when hiking, the night light feature also helps to locate the location visually.
- 【2 Activation Modes】For immediate alert, quickly pull the pin for a fast response. When discrete activation is necessary, the safety keychain can be triggered by double-pressing the button while concealed in your pocket.
- 【Lightweight & Portable Design】Keep safety within reach with TECKNET self defense alarm (28 g), complete with a keychain attachment. Its ring-shaped pin design effortlessly attaches to purses, backpacks, belts, or keys. Carry our personal alarm for self defense from day to night––around town, walking your dog, on the trails, across campus, to your car, in the parking lot, on public transportation, when traveling.
- 【A Priceless Gift】TECKNET safety alarm keychain is a great addition to any self defense weapons for women. It’s the perfect gift to share––with your sisters, daughters, mothers, friends, students, colleagues and elders in your community. This self protection keychain alarm is essential for women's safety, but it's our hope that you'll never need to use it.
- Limitations: using one requires getting close and maintaining contact. Movement, clothing, poor contact, or losing your grip can undermine deployment. It may escalate a confrontation, and product names can blur the distinction between contact devices and projectile TASER-style models.
- Before relying on it: identify the actual device type, learn its controls, and check state and local rules. Do not assume a crackling sound or built-in flashlight proves its effectiveness.
Best fit: a person who has considered the close-range drawback and verified that possession and carry are permitted. For many people, an alarm, flashlight, or lawful spray is easier to access without approaching a threat.
6. Portable door wedge or security bar
A travel wedge, portable jammer, or door bar is a delay tool for a room you occupy—useful in some hotels, dorms, or apartments. It supplements, rather than replaces, a working lock. Its goal is to give you time to call for help or leave if there is a safe route, not to serve as a weapon.
- Look for: a non-slip base, a design that fits the door’s opening direction and threshold, and a size you can install quickly without tools.
- Limitations: some do not work with outward-opening doors, loose frames, damaged doors, carpet, or unusual thresholds. A wedge may slow your own emergency exit, and it does not secure windows or other entrances.
- Before relying on it: test the fit in daylight, learn how to remove it quickly, and make sure it does not interfere with an evacuation route.
Best fit: travelers and residents who want an extra layer on a compatible door while they are inside. It is not a substitute for a sound lock or an exit plan.
7. Door, window, or driveway alarm
Entry alarms can use a magnetic contact, vibration sensor, or motion detector to trigger a local siren. A locally sounding alarm can still make noise when internet service is down. App alerts and remote monitoring add reach, but depend on connectivity and may carry recurring fees.
- Look for: a siren you can hear from the rooms that matter, clear battery requirements, tamper alerts, a convenient way to disarm it, and—if you want remote alerts—an explanation of Wi-Fi, cellular backup, monitoring, and subscription costs.
- Limitations: flat batteries, outages, false alarms, and poor placement can weaken the system. A siren may not reach neighbors. Repeated false alerts can train household members to ignore them.
- Before relying on it: test the alert from different rooms, check batteries on a schedule, and make sure everyone in the household knows how to arm and silence it.
Best fit: people who want basic detection at a vulnerable entry point. Pair it with sound locks, lighting, and a response plan; a sensor does not secure a door by itself.
Recommended Free Tools
Rank #4
- 140db Safe Sound Personal Alarm: The emergency alarm can make a loud sound to draw attention to protect you from having an emergency even at distances as far as 606.9 ft. In addition, the sounds could last 50 minutes continuous ear-piercing alarm.
- High Powered: This Personal Alarm equips with 3 AG13/LR44 batteries for extended life! The AG13/LR44 batteries are the secret to this alarm's painful loudness. They'll last up to 365 days before you need to consider replacing them.
- Multi-Function: With LED lights, the emergency alarms can be applied for night lighting, suitable for people at all ages such as students, elderly, children, women, night workers and so on; You can also use them for traveling, hiking, camping and dog walking at night.
- Compact And Convenient: The safety alarm keychain has a portable size for easy storage and carrying; It can be attached to women's bags, backpacks, school bags, belt loops, suitcases, keys, dog belts and so on; And you can take it even you are on the plane.
- Ultra Durable & High Quality: The Portable Personal Alarm uses superior environmental and durable ABS plasticn, resistance to fall, crush and voltage, and high temperature, and the copper plug, not rusty, beautiful and durable, won't break in your most adverse conditions.
8. Emergency-location wearable or alert button
These products range from a button that contacts a phone to a GPS-and-cellular wearable or a professionally monitored medical-alert service. Check what the device actually does: a Bluetooth-only button usually depends on a nearby phone, while an independently connected wearable still needs coverage, charging, and sometimes a subscription.
- Look for: coverage where you spend time, battery life, location accuracy, two-way voice if you need it, a clear emergency-contact workflow, water resistance, and the ongoing fee. Consider fall detection only if it is relevant to the user.
- Limitations: GPS may be less accurate indoors; weak cellular coverage can prevent a live alert. A depleted battery, cancelled plan, or inability to speak after pressing the button may complicate a response. Location and incident data raise privacy questions.
- Before relying on it: test an alert with contacts, confirm what happens when there is no phone or signal, keep it charged, and review data retention and cancellation terms.
Best fit: older adults, people with mobility or medical concerns, and runners or travelers who want a way to share location or request assistance without reaching for a phone.
9. Car escape tool
A vehicle escape tool usually combines a protected seat-belt cutter with a window-breaking mechanism. It is for a crash, flooding, or a jammed restraint or door—not ordinary street self-defense.
- Look for: a shielded cutter, a window tool compatible with your vehicle’s glass, and a mount reachable from the driver’s seat. Consider access for passengers, too.
- Limitations: cars may use different glass at different windows, and not every tool works on every type. A tool in the trunk or glove box may be inaccessible after a collision. A punch may require force and correct placement.
- Before relying on it: check which windows use which glass and the tool’s stated compatibility; mount it within reach before an emergency.
Best fit: drivers and passengers who prepare for vehicle emergencies. Do not assume any window can be broken with any escape tool.
10. Video doorbell or compact security camera
A doorbell camera or compact camera can help you check who is outside, receive motion alerts, communicate through two-way audio, or preserve recordings, depending on the model and service. For example, Ring’s battery doorbell listing shows one installation approach; features, storage, and fees depend on the product and plan.
Best Value
- STAY SAFE, SOUND THE ALARM – When faced with danger, activate Birdie’s piercing 130dB siren and high-intensity flashing strobe light to draw attention and deter potential threats. Simply pull the top ring to unleash an immediate and powerful alert designed to startle and disorient an attacker. Whether you’re on a walk, commuting, or traveling, Birdie provides an added layer of security and peace of mind when you need it most.
- SLEEK, SIMPLE, RELIABLE – Birdie’s modern design makes it effortless to use in any situation. Just pull the top ring to activate the alarm, and reinsert the pin to deactivate. This personal safety device is reusable, ensuring you always have protection on hand. Birdie is a long-lasting safety companion that’s always ready when you are.
- PROTECTION ANYTIME, ANYWHERE – Whether you’re heading out for a morning jog, walking your dog at night, navigating a busy campus, or traveling solo, Birdie is the perfect safety accessory. Compact and lightweight, it easily attaches to your keychain or bag, ensuring you feel confident and secure wherever life takes you—day or night, near or far.
- EMPOWERING & THOUGHTFUL GIFT – Birdie is more than just a safety alarm—it’s a symbol of empowerment. Give the gift of confidence and security to the women in your life, from daughters and mothers to friends, colleagues, and students. Thoughtfully designed for everyday safety, Birdie makes a meaningful and practical gift for any occasion.
- BUILT TO LAST, GIVING BACK – Every Birdie alarm is rigorously hand-tested to ensure durability and reliability when you need it most. We’re committed to making a difference—a percentage of She’s Birdie’s profits support partner organizations dedicated to women’s safety, shelter, and health. When you choose Birdie, you’re not just protecting yourself—you’re helping create a safer world for women everywhere.
- Look for: local versus cloud recording, subscription requirements, night visibility, adjustable motion zones, battery life or wiring, privacy controls, data retention, and compatibility with your existing setup.
- Limitations: a camera does not physically stop entry. False notifications can become noise, batteries need charging, and outages can interrupt live viewing or cloud storage. Recording and audio laws vary. A visible device may also be damaged.
- Before relying on it: test notifications, set useful motion zones, secure the account, and review who can access recordings and how long they are retained.
Best fit: people who want front-door awareness or a record of activity. Combine it with locks and lighting, and do not mistake an alert or recording for an emergency response.
How to choose: a practical access test
Before buying, answer these questions for the specific place and person who will use the device:
- Is it legal there? Check state and municipal law, plus rules for schools, campuses, employers, airports, transit, courthouses, stadiums, and other venues. Verify purchase, shipping, age, training, registration, carry, and use rules separately. Possession rules do not settle whether a particular use is lawful.
- Can you reach it? Find it in darkness. Can you access it one-handed while moving, without digging through a bag or unlocking an app? Can you orient it without looking down?
- Can you operate it under stress? Learn the safety, activation, reset, and shutoff. A gadget that requires fine motor control, a phone connection, or a complicated sequence may not suit the user.
- What is the failure plan? Check dates and batteries, test connectivity, understand coverage limits, and keep another way to call for help. Include refills, replacement supplies, and monthly fees in the total cost.
- Does it fit the user? For limited grip, arthritis, low vision, hearing loss, or mobility limitations, consider tactile orientation, large controls, wearable activation, or an alarm with an accessible button. For children and teens, school policy, secure storage, supervision, and accidental activation matter; an alarm, phone shortcut, or location-sharing plan may be more appropriate than a weapon.
- Does it help you leave? Favor tools and habits that create attention, communication, time, or distance. Have a next step—move to safety, lock a door, contact someone, or call emergency services—rather than assuming activation ends the danger.
Legal and personal-safety limits
Rules differ by jurisdiction and venue, and change over time. Federal law does not settle every question about carrying or using these products. For example, Texas DPS separately discusses commercially sold chemical dispensers and conducted-energy devices, illustrating why a broad national summary cannot answer every state-specific question: see the Texas Department of Public Safety guidance. Check current official local sources before purchasing or traveling with a device. Legal possession also does not mean use is justified in every circumstance; use only when legally justified and proportionate to the threat.
Be especially cautious about electric weapons: the CRS notes possible serious injury or death, and less-lethal is not synonymous with harmless. Avoid relying on any device as a guarantee or assuming it is safe for a particular medical condition. If health concerns affect your choice, consult a qualified clinician and the manufacturer’s safety information.
Connected alarms, cameras, and wearables can collect precise location, audio, video, or contact details. Review who can see that information, how long it is kept, whether a subscription is required, and what happens to core features if you cancel. In a controlling or abusive household, a discovered or taken device can increase risk; a gadget alone is not a safety plan. Trusted contacts, discreet ways to summon help, safe exit planning, and specialist support may matter more.
After activating a device
- Move to a safer place; do not pursue the other person.
- Call emergency services when needed, or ask a specific bystander to call.
- If exposed to spray or injured, seek appropriate medical attention and follow product instructions.
- Preserve the device and relevant evidence, and report the incident where appropriate.
- Contact someone you trust. In an ongoing safety situation, consider professional support and a broader plan rather than relying on one purchase.
What makes sense for many people?
A modest starting point may be a personal alarm, a reliable flashlight, a charged phone with emergency contacts or location sharing, and—if legal and suitable—a pepper spray or gel the user has practiced accessing. Add a door wedge, entry alarm, camera, alert wearable, or car escape tool only for the specific home, travel, communication, or vehicle need it addresses. There is no reason to buy all ten.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
