Equipped with a high-performance Bluetooth 5.3 (LMP 12.513) chip, 2MB/s high bandwidth, low power consumption, data transmission, fast response, farewell to lagging and other problems. External 4dBi high-gain antenna has better performance, stronger transmitting signal and distance. -free transmission 100 real-time data transmission, convenient and fast. Support lossless transmission technology, 44.1KHz high sampling rate, CD-level high-definition fidelity stereo sound quality, clear sound quality. Win8.1/10/11 driver-free, plug and play. Product name: Bluetooth 5.3 Adapter Bluetooth version: 5.3 Frequency range: 2.4GHz (2402-2480MHz) Support protocols: A2DP, , AVRCP, , etc. Transmission distance: 0~100M Rated voltage: DC 5V Interface type: USB : Win8.1, Win10, Win11 (drive free) Material: ABS Color: Black Package Contents: 1 x Bluetooth Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.