Features: 1.Adopts the latest Bluetooth 4.0+EDR technology for lower power consumption and wider compatibility. 2.This bluetooth car kit allows you to enjoy your smart phone music through your car stereo system. 3.Degree of distortion is <0.5%, brings you ultimate vocal experience, support handfree call function. 4.Support for multiple bluetooth profiles, supports for HFP, HSP, A2DP and AVRCP. 5.The Bluetooth car kit will automatically turn on when car starts, and then automatically synchronize with the last connected mobile phone. (Please make sure the Bluetooth of your phone is turned on before starting the car.) 6.With the multipoint technology, the bluetooth car kit can connect to 2 devices at the same time. Specification: Item Type: Car Handsfree Calling Kit_x000D_ Material: ABS_x000D_ Color: Black_x000D_ Bluetooth Version: 4.0+EDR_x000D_ Bluetooth Frequency: 2402 MHZ-2480 MHZ_x000D_ Bluetooth Profiles: Support for HFP, HSP, A2DP and AVRCP_x000D_ Degree of Distortion :