AUKEY FM Transmitter, Radio Adapter Car Kit with USB Car Charger, Compatible with iPhone 6 / 6 Plus / 6S / 6S Plus / Galaxy S8 / S8 Plus / S7 / S7 Edge Wireless Upgrade: Wirelessly broadcast audio from your mobile devices to your existing car FM stereo system 3.5mm Audio Streaming: A direct connection for any device with a 3.5mm audio output including phones, tablets, and mp3 players Handy USB Charging: Integrated car charger with an extra port to charge your USB-powered devices Easy Use: High-visibility display with intuitive buttons to change FM frequency Package Contents: AUKEY BT-C4 FM Transmitter Car Kit, User Manual, 45-Day Money Back Guarantee and 24-Month Product Replacement Warranty Card