These are 3 types to choose :

1) 150m BT5.4 ：150m transmission distance Bluetooth 5.4 adapter

2) 150m BT5.3 ：150m transmission distance Bluetooth 5.3 adapter

3) 20m BT5.1 ：20m transmission distance Bluetooth 5.3 adapter

Note: For Win 7 need to install drivers. If your computer system for Win8.1/10/11, you do not need to install the driver.

It is driver-free for Win8.1 and above system.

This product is not supported on Mac OS/IOS system.

150m BT5.4

Product features:

1. The real 5.4 Bluetooth chip is adopted, which conforms to the technical specification of Bluetooth 5.4, LMP：13.X, BLE/EDR dual-mode low-power transmission.

2. Longer transmission distance: 150m long transmission distance (no barrier),upgraded antenna and strong signal.

3. More stable transmission rate: 3Mbps transmission rate, providing high-speed file and audio data transmission.

4. Drive-free use: it supports plug-and-play without drive, without CD installation, which is convenient and simple. (Win8.1/10/11 is free of drive, and Win7 needs to install a driver)

5. Ultra-low delay speed link, intelligent sleep wake-up to save energy, 24-bit CRC check to resist interference, adaptive frequency hopping to reduce crosstalk.

6. backwards compatibility Bluetooth 2.0, Bluetooth 2.1, Bluetooth 3.0, Bluetooth 4.0, Bluetooth 5.0, Bluetooth 5.1, Bluetooth 5.3 and other specifications.

7.USB2.0 interface (universal USB3.0).

8. It can connect 7 kinds of devices at the same time with strong compatibility, and realize the wireless Bluetooth connection between the computer and other Bluetooth protocol devices (Bluetooth headset/speaker/mouse/keyboard/gamepad/mobile phone/printer, etc.) for audio, data and image transmission.

9. Technology upgrade, one link, and subsequent use of automatic reconnection, without secondary pairing.

150m BT5.3

Chip: (RTL8761BW)

1. Upgrade Bluetooth 5.3+BLE (LMP:12.45)

2. Compatible with Bluetooth versions such as 5.2/5.1/5.0/4.0/3.0/2.0.

3. Low power consumption, low delay and high-definition sound quality

4. For Win8.1/10/11 driver-free, plug and play, for Win 7 need to install drivers.

5. Connect once, and connect automatically.

6. Support simultaneous connection of multiple devices

7. Wide compatibility (Bluetooth headset/speaker/Bluetooth mouse/keyboard/Bluetooth handle/printer/Android)

8. External dual antennas, 150 meters distance

9. Support A2DP/HSP/AVRCP/HID/SBC/AAC and other protocols