Bullet Points:1 [ Up-to-date Technology ] Wirele Transmitter is adopt the latest Wirele 5.3+EDR adapter, comes with fast response and better anti-interference, able to support dual-mode (BR/EDR+low-power controller).2 [ Operate Easily ] Wirele Transmitter is able to plug and play, easy to use, simple to help your computer without Compact Disc-ROM can download drivers from the mini Compact Disc.3 [ Widespread Adoption ] Wirele Transmitter only supports System 8.1/10/11, great to support wirele speakers, stereo headsets, headsets, keyboards, and mouse wirele printers, widely used.4 [ Multiple Purposes ] Wirele Transmitter is able to improve the stability of the connection, is useful and practical, and great to reduce the poibility of signal interruption.5 [ Easy to Carry ] Wirele Transmitter is a very compact wirele stick, easy to carry without taking up space, able to leave it on your laptop or PC without taking it off.Specification:Product Name: USB Wirele AdapterWirele version: 5.3 (BLE low energy consumption, low latency)Main control chip: ATS2851Transmiion distance: 20 meters (under barrier-free environment)Support protocols: A2DP, HSP, AVRCP, HID, etc.Package size: 11*9*1.2cm/4.33*3.54*0.47inPackage weight: 20gPacking List:Adapter*1Manual*1