1.ADVANCED BLUETOOTH 4.1 RECEIVER: A solution for cars with non Bluetooth capabilities, enjoy handsfree calling, GPS and streaming music while in driving. Its also connect with older home audio systems and wired headphones via 3.5mm aux cable/adapter to help you enjoy the wireless^ 2.CLEAR HANDS-FREE PHONE CALL: Hands free future makes calls super simple when driving, you can Answer/End/Reject calls and Redial the last called number on this BT audio adapter. Enjoy wireless stereo music and no more worry about missing any calls^ 3.DUAL CONNECTION & WIDE COMPATIBILITY: The mini bluetooth receiver adapter connected with two bluetooth devices at the same time, the bluetooth range up to 33ft without obstacles.It ideal for home or vehicle audio systems, compatible with most bluetooth enabled devices like smartphone (both iPhone and Android), MP3, CD player, tablet, etc^ 4.RELIABLE CONNECTIVITY: Equipped with the latest bluetooth 4.1 for faster and more stable connectivity, it supports A2DP, AVRCP, HSP, and HFP. No need to tolerate the problem of signal cuts in and out^ 5.LONG PLAY TIME & QUALITY WARRANTY: Bluetooth adapter is up to 12.8 hours nonstop music streaming, radio, GPS or handsfree phone calls, and 250 hours standby time.