Features:Long-distance BT receiving and transmitting 150 meters (open distance).External dual antenna enhancementDrive free plug-and-playRotatable antennaAdjust the signal to improve the signals mpfindlichkeitOnce tuned, flash connection from hereReport Item:Note: Win 7 needs to install the driver. If your computer system is win8.1/10/11, you do not need to install the driver.It is driver-free for Win 8.1 and above systems.This product is not supported on Mac OS/iOS systems.Specifications:Bluetooth 5.3 150mChip: (rtl8761bw)1. Upgrade Bluetooth 5.3 ble (lamp: 12.45)2. Compatible with Bluetooth versions like 5.2/5.1/5.0/4.0/3.0/2.0.3. Low power consumption, low delay, and high-resolution sound quality.4. Win8.1/10/11 driver free, plug and play, win 7 needs to install driver.5. Connect once and connect automatically.6. Support simultaneous connection of multiple devices7. Wide compatibility (Bluetooth headset/speaker/Bluetooth mouse/keyboard/Bluetooth handle/printer/android)8. External dual antennas, 150 meters distance9. Support a2dp/hsp/avrcp/hid/sbc/aac and other protocolsPackage Includes:1*Bluetooth 5.3 Adapter