Equipped with a high-performance Bluetooth 5.3 chip, the signal is stable and high-speed, the response is fast, and latency is minimized. The upgraded Bluetooth 5.3 adapter offers extended range coverage and a more stable connection. Bluetooth 5.3 delivers higher performance and supports data/audio transmission. Transmission distance up to 100 meters in open environment for real-time data transfer, convenient and fast. Driver-free, plug and play. Product name: USB Bluetooth Adapter Model: BT608 Bluetooth version: 5.3 Transmission distance: 100 meters (in open environment) Support protocols: A2DP, AVRCP, HID, etc. Material: ABS Color: Black Package Contents: 1 x Bluetooth Adapter 1 x Antenna 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 to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.