Equipped with a high-performance Bluetooth 5.3 chip, the signal is stable and high-speed transmission, the response is fast, and the delay is rejected.The upgraded version 5.3 Bluetooth adapter has a distance coverage and a more stable connection.Bluetooth 5.3 has higher performance and supports data/audio transmission.-free transmission 100 real-time data transmission, convenient and fast.Driver-free, plug and play.Product name: USB bluetooth adapterModel: BT608Bluetooth version: 5.3Transmission distance: 100 (under -free environment)Support protocols: A2DP, , AVRCP, , etc.Material: ABScolour: BlackPackage Contents:1 x Bluetooth Adapter1 x AntennaOnly the above package content, other 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.