SAGUARO In-Car Wireless Bluetooth FM Transmitter MP3 Player Handsfree Car Kit Radio Adapter with Hands-Free Calling & Dual USB Charging Port(5V 2A), for Apple iPhone,Samsung,HTC,LG & Other Smartphones Safe Driving: Built-in Microphone,you can makes hands-free calls easy while driving.Enjoy your safety driving. Multifunctional Design 5 in 1: Wireless Bluetooth in-car Multifunction FM Transmitter enables you to do Hands-free calls, enjoy clear music, GPS voice navigation, charge your device. Better for empty channel. Compatible with iPhone 6 6 Plus 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. Dual USB Charging port: Output voltage - DC 5V,2A. You can charge your iphone/Ipad/tablet/and other smartphone when you enjoy your driving. Dual USB socket support U Disk to play music in your car speaker.