Bluetooth Car Kit, FM Transmitter In-Car Universal Wireless FM Transmitter Radio Adapter Car Kit MP3 Player Hands-free calls, enjoy clear music, GPS voice navigation, charge your device. Adjust random the angle, suitable for different vehicles, and CVC technology cancel echo and reduce ambient noise An universal USB charging port for charging mobile phones and other devices (output: DC 5V/1A), so you can power up while you're talking or listening to music. Work with iPhone 6 6+iPad Air, iPad Mini 2, Samsung Galaxy S4/3, Samsung Galaxy Note 3/2, Nexus 5/4, HTC One, Blackberry and Android, Blackberry & Windows Smartphone. Not only can play the MP3 music from your cellphone by 3.5mm audio cable but also support USB flash disk playing.during the Bluetooth connecting, play the phone's music and FM transmitter to Car Audio.Bluetooth sound processing :A2DP(Advance Audio Distribution Profile)