EDUP EP-B3503 Handsfree Wireless Car Bluetooth V3.0 Music Receiver Adapter A2DP Stereo Profile Mic 10m Range for Mobile Phones(B3503) Bluetooth V3.0+EDR Supports A2DP stereo profilee One touch connect button for easy device pairing Sleep mode for energy saving Up to 8 hours music playback or continuous with Mini USB charger