Description: It adopts bluetooth-compatible 5.0, which has a faster and more stable connection. You can connect to your smart phone to enjoy wireless high-quality stereo music and hands-free calling. Made of ABS high quality material, it is lightweight and durable to use. The length of this product is 3.2cm, the width is 1.7cm and the height is 0.9cm. It is suitable for car, computer, TV, mobile phone and speaker. Item Name: bluetooth-compatible Adapter Material:ABS Technology: BT5.0, A2DP, AVRCP Operating Range: Up to 10m/33ft Pairing Name: RT02 Transmission Mode: Red Indicator Light Receiving method: Blue Indicator Light Transmission Rate: 24 Mbps Effective Working Radius: 10m Size:3.2cmx1.7cmx0.9cm/1.26inx0.67inx0.35in Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.Package Includes: 1 X User Manual 1 X 3.5 Auxiliary Cable 1 X bluetooth-compatible Adapter