Specification: _x005f_x000D_ Origin: Mainland China _x005f_x000D_ Bluetooth-Compatible Version: 5.4 _x005f_x000D_ Operating Frequency: 2.402GHZ-2.480GHZ _x005f_x000D_ Transmission Distance: 0-150m/0-5850.00in _x005f_x000D_ Rated Voltage: DC 5V _x005f_x000D_ Interface Type: USB _x005f_x000D_ Compatible System: Windows 7/8.1/10/11 _x005f_x000D_ Packing Size: 155*80*16mm/6.05*3.12*0.62in _x005f_x000D_ Gross Weight: 36g _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! _x005f_x000D_ Please allow 1-2cm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1*USB Bluetooth-Compatible 5.4 Adapter 1.Advanced Bluetooth-compatible 5.4: Utilizing the latest 5.4 Bluetooth-Compatible chip compliant with 5.3 specifications, the USB Bluetooth-Compatible 5.4 adapter ensures dual-mode BLE/EDR connectivity for low-energy, high-efficiency performance across devices. 2.Extended Range: Experience an impressive 150m wireless reach with our enhanced antenna design of this wireless Bluetooth-Compatible dongle, providing a robust signal and uninterrupted connection even without direct line-of-sight. 3.High-Speed Transmission: Boasting a 3Mbps data rate, our USB wireless receiver facilitates swift file and audio transfers, keeping your work and entertainment flowing without delay. 4.Driver-Free Convenience: This wireless dongle requires no driver installation, making it a hassle-free solution for instant connectivity with speakers, earphones, mice, and keyboards. 5.Multi-Device Support: Connect up to seven devices simultaneously with strong compatibility, ensuring this audio transmitter receiver adapter meets all your wireless needs, paired with automatic reconnection for effortless, ongoing use.