【WIDE COMPATIBILITY】- MaximalPower FM Transmitter works with all smartphones, iPhone, iPad, iPod, Tablet and much more devices. Great Sound for Phone calls and Music streaming to your car. Fast Bluetooth pairing, Once paired, Auto-connect next time, support TF card, USB flash drive also. Free MaximalPower Microfiber Cloth Included. | 【DUAL USB CAR CHARGER】 - Built-in dual USB ports, Max. 5V / 3.1A output, 1A USB port support smart charging, handy additional USB port means you can charge another device fast while you are driving, it can support to charge all electronic devices with USB charging port such like smartphone, tablet, camera, Apple iphone, Samsung Galaxy, LG, HTC,etc. | 【CRYSTAL CLEAR SOUND TECHNOLOGY】 - FM Transmitter support A2DP function(Advanced Audio Distribution Profile) music will be played directly while the mobile phone is connected.adopted advanced interference and NOISE CANCELLATION CVC technology, creates full duplex sound and suppresses noise and wind, to grant crystal sound quality. | 【HANDSFREE CALLING & LCD DISPLAY】 - Simply pair your phone with the Wireless Adapter and its hands-free system can liberate your hands during answer the calls and let you drive safely. What's more, the car battery voltage could be real-time monitor once the car starts. | 【EASY TO USE】 - Just plug the Wireless Audio Bluetooth FM Transmitter in the car cigarette lighter, set it and the car radio at the same frequency (On the FM Transmitter, Press and Hold the (MULTI FUNCTION KEY for 5 seconds until it starts to blinking) to Select frequency range from 87.5 - 108 Mhz). Then let your phone/audio player connects to FM audio music.