DescriptionThe item is a universal and practical in-car mini FM transmitter, which is compatible with iPad, iPhone, iPod, HTC Samsung, Motorola ,Nokia, MP3 players and other audio device with a 3.5mm audio jack. Only to connect the device to your mobile phone or other 3.5mm-jack audio devices, tune its frequency same as car FM radio, and transmit and play your favorite musics from your mobile phone to your car stereo. It supports hands-free talk function, giving you more safety while driving. With portable design and easy to operate, it is really a wonderful mini car FM transmitter for choice.Features- Color: mainly white. - Material: durable hard plastic and alloy. - and Foldable 3.5mm-plug Wireless In-Car Handsfree Mini LCD FM Transmitter. - Compatible with iPad, iPhone, iPod, HTC Samsung, Motorola ,Nokia, MP3 players and other audio device with a 3.5mm audio jack. - Full frequency range, and Memory for last frequency. - LCD screen displays frequency with backlight. - With Touch key design, for easy opeation. - Support Hands-free talk function, offering more safety while driving. - Digital PLL, transmission is stable in different environments. - Transmit your favorite tunes from your device to your car/ other stereo. - Powered by built-in rechargeable lithium battery, no need phone's power. (The battery adopts built in protection IC. Pls do not charge too long time in order to prolong the life of the battery.) - Mini size and foldable 3.5mm-plug design for easy to carry.Specifications- Voltage: DC 12-24V - Effective Range: 5m - Power supply: built-in rechargeable lithium battery. - Charge time: about 5 hours - Distortion degree: 2% - Transmitting Frequency: 87.5MHz-108.0MHz.How to Operate1. Connect this device to the compatible mobile phone or other audio devices. 2. Tune the frequency of this devices same as car radio. Play your music and enjoy it via car stereo. 3.Press the answer key of your mobile phone when the phone rings to answer calls, then talk handsfree via built high-quality microphone and the car stereo 4.If the FM signal is interrupted, pls reset the car radio and this devices to another clear frequency. (For optimal voice clarity, distance of 30 to 60cm between the user and the microphone is advised. If distortion or significant noise happens, pls tune down the volume of iPhone and tune up the radio).