Top-cofrLD Digital Wireless Bluetooth FM Transmitter, Bluetooth Receiver,FM RadioStereo Adapter, Car MP3 Player with Bluetooth Handsfree and Dual USB Charging Port Guarding your 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+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.2 USB socket support U Disk to play music in your car speaker. Compact, lightweight and simple design - perfectly portable and unobtrusive