AUTO-T FM Transmitter with Handsfree Function#FM transmitter with one-click Bluetooth hands-free kit and power socket with an output of 2.1A#This FM transmitter will allow you:#- to listen to the music on a smartphone#- to answer the phone with a single click#- to power an iPod, iPhone, iPad, or other tablets and electronic devices, via a 5V/2.1A USB port #Automatic switching between music mode and handsfree mode during a phone call.#Supports all external audio sources with a cable jack 3.5mm provided#Bluetooth connection from the smartphone and modulation of FM frequency#Large LCD screen / white display#Backlit with highly-adjustable flexible metal support#Power Supply 12V or 24V direct with cigarette lighter socket