Top Quality 3.0 In-Car Wireless Bluetooth professional-grade FM Transmitter This little gadget with dual USB Ports Charger(one is 3.0 charger), LED digital display screen and Built-In Mic, gives you safer, Flexible and convenient driving experience of hands-free calling, music enjoyment, quick charge. Feature: Wirelessly transmit phone call from mobile phone to car FM stereo system. Switch to hands-free mode automatically from music playing status when receive call. Built-in Microphone. Support music playing from USB. Detect and display the voltage of car battery when power on. With Voice prompts. Low voltage warming warning: Less than 12V (Voice prompt ). Incoming call number announcement. Supports last call redial. Function: Built with a high-performance microphone, with Echo Cancellation and Noise Reduction (CVC) technology offers you a crystal clear calling and safer driving. Two music play mode(pair with the phone via specific Bluetooth or Insert USB Disk into the “Right” USB Port) let you be absorbed in music playing when driving. Built in dual USB ports car charger(one 3.0 speedy charge port), and smart charging IC, automatically detects your devices and charges all cellphone or iPad at optimal speed. Charge two devices simultaneously and fully charged in a short time Super compact and portable design with blue LED digital screen display of FM and car voltage, provides you portable driving travel. NOTE: Please NEVER use it in these conditions: Moist or underwater conditions. Near heater or high-temperature service. With direct and strong sunshine. Never dismantle it without due permission. Package contents: 1x Bluetooth FM Transmitter with Dual USB Charge Port 1x User Guide

Multi-safety protection :comes with built-in over-current protection, over-voltage protection, intelligent temperature control, short circuit protection. Wide compatibility :bluetooth car fm transmitter can be paired as a hands-free kit with all bluetooth enabled devices, such as iphone, ipad, ipod, tablet, samsung, htc, sony and other andriod smartphones. Immerse in hi-fi music: insert a usb flash driver which contains mp3 files into the right usb port and enjoy it. if that's not enough, it can also support your playlist with no distortions of the original signal from your mp3, iphone, android smartphones and more bluetooth enabled devices. Answer calls hands-free :high-performance microphone with noise suppression cvc technology, grants you crystal clear call. answering/redialing/dismissing or ending call just simply click a button. 2 ports usb car charger 3.0 charger : support charging two devices simultaneously, one port is quick charge 3.0 port. this fast charge port is also compatible with: 2.0, hua wei fcp, type-c and samsung. the charger efficiency is more than 80%.