AIRWALKS Bluetooth FM Transmitter, Wireless Vehicle Car Charger with 5V/3.1A Dual USB Port Handsfree Calling MP3 Player Compatible Modes: IPod/iPhone 6 6plus 5 5S 5C 4S 4 iPad, Samsung, iPad, Nokia, HTC, Galaxy, Blackberry, MP3 Players, Digital Cameras, PDAs and other mobile devices Easy to use: Pairing your phone and FM transmitter by Bluetooth, insert device in the socket, switch to FM radio mode, make sure the FM transmitter's frequency is the same as car's FM, then you can enjoy your music as you like Handsfree calling: Built-in microphone makes hands-free calls easier, you can greatly enjoy music and picking the call up during driving for safety, perfectly suitable for car owners Dual USB charging: Dual USB outputs, both support two-way plug USB, can charge two devices at the same time with the maximum output of 5V/2.1A+1A Comes with a Full 12 Months Warranty, 30 Days Money Back Guarantee.Any Questions, Please Feel Free to Contact the Customer Service