Unique Design! Geartist RT507 Wireless FM Transmitter Radio Car Kit with Car Charger for iPhone 6s/6s plus, iPad/iPod & Android Smart Phone with 3.5mm Audio Plug, Handsfree - Black 1. It is a Hi-Fi FM audio transmitter, built-in the high quality Phase-locked loop audio decoding technology, you could connect your music devices such as mobile phone, tablet, IPOD, MP3/4 and so on with the car radio by FM and the music will be transferred to the car stereo. 2. It has the inline control function .When playing, you could control the PREV/NEXT/PAUSE functions. 3. Insert MIC, so you could answer /hung up a call by this device. 4. There is a 3A/5V car charger and you could recharge your devices with it. 5. Includes: 1 x FM transmitter, 1 x Dual port car charger, 1 x transmitter stand, 1 x user manual