Agptek Wireless In-Car Bluetooth FM Transmitter Radio Adapter Hands-free Car Kit with USB Car Charger PLAY MUSIC FROM YOUR PHONE & MAKE HANDS FREE CALL AUTOMATIC - Wirelessly Play Music, Make hands-free calls and Charge your device with the advanced Superior design of the AGPTEK newest car FM transmitter,Compatible with iPhone 6 Plus/6/5S/5/4S/4, Android Smart Phones iPad,iPod,Tablets,MP3/MP4 Players. This FM transtimtter makes hands-free calls and enjoy music easy while driving. EXCELLENT SOUND QUALITY - achieve excellent sound quality with Bluetooth 3.0 & the latest D.S.P solution for echo cancellation, and CVC technology for noise reduction UNIVERSAL USB CHARGING PORT - USB charging port allows you to charge your Smartphone or MP3 Player. Remarks: This device does not play music and charge at the same time. PLAY MUSIC FROM USB FLASH / TF CARDS -this product can play the music high fidelity from your phone , tablet PC or U disk by your car's stereo. It also comes with the soft blue light for you to read the frequency easily at night. Kindly Notice: This product has six channels, please make sure your car's radio can tune to at least 3 of these channels before purchasing. FM transmission frequency of 87.5 89.0 90.5 101.0 104.8 107.5.