Equipped with a high-performance Bluetooth 5.3 (LMP 12.513) chip, 2MB/s high bandwidth, low power consumption, data transmission, fast response, bid farewell to lagging and other problems. Win8.1/10/11 driver-free, plug and play. Support lossless transmission technology, 44.1KHz high sampling rate, CD-level high-definition fidelity stereo sound quality, clear sound quality. Support multi-device connection without lagging. It can support multiple Bluetooth devices to connect and use at the same time, solve the problem of USB , and meet the needs of occasions. Product name: 5.3 bluetooth adapter Bluetooth version: 5.3 (LMP 12.513) Frequency range: 2.4GHz (2402-2480MHz) Support protocols: A2DP, , AVRCP, HID, etc. Transmission distance: 0~20M Rated voltage: DC 5V Interface type: USB : Win8.1, Win10, Win11 (drive free) Product size: 30x7x15mm 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.