Bluetooth V4.1: featuring Bluetooth 4.1 technology, the wireless FM transmitter automatically selects free frequency (range from 87.5 to 108 MHz) without interference while music playing.
Easy to Use: turn on the Bluetooth FM Transmitter, and connect with the radio at the same frequency and then pair your phone/audio player with the modulator via Bluetooth.
Strong Compatibility: the in-car radio adapter works great with most Bluetooth enabled devices, such as iPhone, iPad, iPod, tablet, and android smartphones.
Long Battery Life: features a built-in 700mAh rechargeable battery that supports up to 10-hour continuous playing. You can enjoy your favorite music during trip without any worries.
Friendly Design: portable and easy to charge with a USB port; support to memorize the last FM transmitting frequency and have hands-free phone conversation for safe driving.