Product name : Bluetooth car kit handsfree Item No. : HD-089 Bluetooth version : 1.2 (II) Support : All bluetooth cell phone and bluetooth handsfree Frequency : 2.4GHz USB Interface : Full speed USB 2.0 Profile : A2DP, Headset, Handsfre Power soure : DC12V-24V cigarette lighter socket ?Hands-free calls have never been so simple! ?echo cancellation ?One key to answer/reject/pair mobile phone ?Transmission through the vehicle's speakers ?Plays music stored on compatible Bluetooth stereo (A2DP) devices ?auto-play music after call ends ?Enjoy voice and music over your car stereo