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Use Puppeteer’s experimental page.bluetooth.simulatePreconnectedPeripheral() API to add a virtual Bluetooth peripheral to a page. First enable the emulated adapter, then provide the device’s address, name, manufacturer data and known service UUIDs. This tests a device that is already connected to the system; it is not the same as automating Chrome’s device chooser for a real peripheral.
Simulate a preconnected peripheral
The following example follows Puppeteer’s documented API shape. It assumes you already have a Puppeteer page and that the installed Puppeteer and Chromium versions support Bluetooth emulation.
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await page.bluetooth.emulateAdapter('powered-on');
await page.bluetooth.simulatePreconnectedPeripheral({
address: '09:09:09:09:09:09',
name: 'SOME_NAME',
manufacturerData: [{
key: 17,
data: 'AP8BAX8=',
}],
knownServiceUuids: ['12345678-1234-5678-9abc-def123456789'],
});The adapter should be enabled before you configure the peripheral or exercise the page’s Web Bluetooth behavior. Adapt the example values to the device information your application expects. See the Puppeteer BluetoothEmulation API reference and the PreconnectedPeripheral interface for the version installed in your project.
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Puppeteer documents four fields for PreconnectedPeripheral:
#1 Best Overall
- Bluetooth 5.4 + Broad Compatibility - Provides Bluetooth 5.4 plus EDR technology and is backward compatible with Bluetooth V5.3/5.0/4.2/4.0/3.0/2.1/2.0/1.1.
- Faster Speed, Extended Range - Get up to 2x faster data transfer and 4x broader coverage compared to Bluetooth 4.0 — perfect for smooth audio streaming and stable connections.
- EDR and BLE Technology - This Bluetooth dongle is quipped with enhanced data rate and Bluetooth low energy, UB500 has greatly improved data transfer speed and operates at the optimal rate of power consumption
- Nano-Sized - A sleek, ultra-small design means you can insert the Nano Bluetooth receiver into any USB port and simply keep it there regardless of whether you are traveling or at home
- Plug & Play with Free Driver Support - Plug and play for Windows 8.1/10/11 (internet required). Supports Win7 (driver required and can be downloaded from website for free). Download the latest driver from TP-Link website to utilize Bluetooth 5.4
address: the simulated peripheral’s address.name: the device name exposed to the test.manufacturerData: manufacturer data entries, each with a numerickeyand encodeddata.knownServiceUuids: the service UUIDs known for the peripheral.
The protocol describes this operation as simulating a peripheral with an address, name and known service UUIDs that has already been connected to the system. The richer Puppeteer interface also accepts manufacturer data. Check the API reference matching your dependency rather than assuming examples or fields are identical across releases.
Test services and GATT behavior
Adding a preconnected peripheral establishes a virtual device, but tests that need to exercise data exchange or error handling may need more than device presence. Chrome DevTools Protocol’s BluetoothEmulation domain also documents operations for adding and removing services, characteristics and descriptors; simulating advertisements and disconnections; and controlling responses to GATT and characteristic or descriptor operations. These controls can be used to model both expected exchanges and failure paths.
Rank #2
- INSTANT BLUETOOTH ACCESS: Bluetooth dongle adapter receiver for PCs converts non-Bluetooth devices into Bluetooth-capable with simple USB connection
- WIDE COMPATIBILITY: Supports Bluetooth 5.4 and is backwards compatible with Bluetooth 5.3/5.2/5.1/5.0/V4.2/4.0/3.0/2.1/2.0/1.1; ONLY works with Windows 8.1, 10, and 11
- MULTI-DEVICE CONNECTION: Connect up to 6 devices simultaneously; Not compatible with all other operation systems e.g. Mac, Linux, Chrome, Unix, Playstation(PS), Windows 7 and below; Nano bluetooth receiver can be plugged in via any standard USB port
- ENHANCED PERFORMANCE: EDR and BLE technology offers enhanced data rate/transfer speed and low energy consumption
- SYSTEM REQUIREMENTS: Not compatible with all other operation systems e.g. Mac, Linux, Chrome, Unix, Playstation(PS), Windows 7 and below; Disable any built-in Bluetooth of the device before use this product, refer to the user manual for detail
The exact available methods depend on the Chromium protocol version in use. Consult the Chrome DevTools Protocol BluetoothEmulation reference and verify method availability against the Chromium version pinned by your test setup.
Keep Bluetooth emulation isolated between tests
Puppeteer’s API documentation notes an important difference between the Web Bluetooth specification and Chromium’s current implementation: although the specification calls for emulated adapters to be isolated per top-level navigable, Chromium’s emulation state is tied to the browser context. Pages sharing a browser context can therefore interfere with each other’s Bluetooth state.
Rank #3
- Upgraded Bluetooth 5.3 Adapter: This bluetooth adapter for pc uses the latest upgraded Bluetooth 5.3 BR+EDR technology, greatly improves the stability of the connection data transfer speed, reduces the possibility of signal interruption and power consumption.
- Up to 5 Devices Sync Connected: UGREEN Bluetooth dongle for PC supports up to 5 different types of Bluetooth devices to be connected at the same time without interfering with each other, such as Bluetooth mouse/keyboard/mobile phone/headphones, etc. If Bluetooth audio devices of the same type (such as speakers/headphones) are connected, only one device can play music.
- Plug and Play: The Bluetooth adapter is developed for Windows systems only and does not support other systems. No driver installation is required under Windows 11/10/8.1. NOTE: Win 7, Linux and MacOS System are NOT supported.
- Mini Size: An extremely compact Bluetooth stick that you can leave on your laptop or PC without removing it.The compact size does not interfere with other USB ports. Convenient to carry, no space occupation.
- What Can I do if the Bluetooth adapter can not work?: Ensure there are no other Bluetooth devices installed on the computer. If there are, disable all existing Bluetooth devices in "Device Manager", then insert the adapter and try again. (For detailed information please read the user manual)
For tests that require independent adapter or peripheral state, use isolated browser contexts rather than sharing one context across pages. Keep Puppeteer and Chromium versions pinned, and validate isolation behavior in the versions your suite actually runs.
When you need to test the real device chooser
Preconnected-peripheral simulation does not test the user’s device-selection flow. For chooser automation, Chrome for Developers’ guide uses a real compatible Bluetooth device: register waitForDevicePrompt() before clicking the app control that calls navigator.bluetooth.requestDevice(), wait for a matching device, and then call select(). The guide requires Puppeteer v21.4.0 or later. See Test Web Bluetooth with Puppeteer.
Rank #4
- This Bluetooth adapter for PC utilizes the latest Bluetooth 6.0 EDR technology, delivering faster data transfer speeds, seamless high-quality audio/video streaming, and efficient large-file transfers.
- Up to 5 Devices Sync Connected: This Bluetooth dongle for PC supports up to 5 different types of Bluetooth devices to be connected at the same time without interfering with each other, such as Bluetooth mouse/keyboard/mobile phone/headphones, etc. Note: If Bluetooth audio devices of the same type (such as speakers/headphones) are connected, only one device can play music.
- Ultra-High Data Transfer Speeds: With Bluetooth 6.0 technology, this bluetooth dongle will bring us a faster speed experience. And Bluetooth 6.0 is backward compatible with Bluetooth5.4/5.3.
- EDR and BLE Technology - This Bluetooth dongle is equipped with enhanced data rate and Bluetooth low energy, it wil optimize energy.
- Plug and Play: The Bluetooth receiver is developed for Windows systems only and does not support other systems. No driver installation is required under Windows 11/10/8.1. NOTE: Linux and MacOS , Win 7 System are NOT supported.
| Approach | Physical device | Chooser interaction | Useful for |
|---|---|---|---|
| Preconnected peripheral emulation | No; the peripheral is simulated. | No; it represents a device already connected to the system. | Virtual device behavior and, with protocol controls, services, GATT operations and failure cases. |
| Chooser automation | Yes; the Chrome guide calls for a real compatible Bluetooth device. | Yes; the test waits for and selects a device prompt. | Testing the chooser flow and integration with real Bluetooth hardware. |
Or skip the browser setup
ScreenshotNeo is a website screenshot API and MCP server, not a Bluetooth peripheral simulator. If the task also involves capturing a page, one GET request returns a screenshot or PDF; see the ScreenshotNeo API documentation.
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpScreenshotNeo removes cookie banners, newsletter popups and chat widgets before capture; bot checks, blank pages and failed loads are never billed. Its MCP server lets AI agents take screenshots, and its free plan includes 1,000 screenshots a month with no card; paid plans start at $5 for 3,000. Sign up for 1,000 free screenshots a month, with no card required.
Frequently Asked Questions
Is Puppeteer’s preconnected Bluetooth peripheral API stable?
No. Puppeteer currently marks Bluetooth emulation experimental, so check the API reference for your installed version.
Best Value
- Bluetooth 5.4 dongle: Applies the latest Bluetooth 5.4+EDR technology, compatible with Bluetooth 5.3/5.2/4.2/4.2 LE/4.0/2.1+EDR, and supports Dual mode (BR/EDR+ Bluetooth Low Energy) to achieve low energy consumption and high speed. Quick response and better anti-interference.
- Plug & Play: USB wireless Bluetooth is not limited by network and location, no need to install drivers, just plug the USB wireless adapter into your computer, you can use it directly. You can use the Bluetooth function at any time. Greatly improve your work efficiency and save your time.
- Long Range Bluetooth Adapter: The USB Bluetooth 5.4 dongle uses Class 1 radio technology, equipped with extra long antenna, and the transmission range in the open area can reach 500ft/150m, Bluetooth connections are no longer affected by distance. Note: The actual transmission range will be affected by physical obstructions and wireless interference.
- Fast Transmission Rate: This upgraded Bluetooth 5.4 adapter features EDR technology and Bluetooth Low Energy (BLE) configuration up to 3Mbps, which greatly improves transmission rates and reduces the loss of transmission efficiency due to interference in the 2.4GHz band. Enables fast, no delay wireless data connections between your computer and Bluetooth devices.
- System Support: The upgraded Bluetooth 5.4 dongle has a wide range of applications. You can connect up to 5 devices at the same time using Bluetooth wireless. Such as Bluetooth speakers,keyboards,headsets,mice, and Bluetooth printers,etc. Only supports Windows 11/10/8.1, Not compatible with Mac OS, Linux,car stereo systems,XBOX,ps4 or TVs.
Does simulatePreconnectedPeripheral test navigator.bluetooth.requestDevice() and the chooser?
No. It simulates a peripheral that is already connected. Testing the chooser is a separate workflow that uses a real compatible Bluetooth device.
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