Description: [Car Charger] :Stylish and compact design , suitable for most models , it tablet PC , smart phone , MP3 , MP4 , driving recorder and other USB port devices to charge in the car . [Bluetooth Handsfree call] : noise processing ensure safer driving , and just a short press to answer the call . [Support TF card&MP3 Player]: music playback , the FM frequency point is displayed on the power - on screen , and the FM frequency point of the car is adjusted to match it . The music in the mobile phone can be wireless through Bluetooth. the TF card / U disk playback and MP3 / WMA format music . [Dual USB ports]: fast charging speed within a short time , and it can charge two terminals at the same time. [Easy Setting& Voltage Detection] Easy to install. Intelligent automotive voltage detection protects your electronic equipment from damage. Specification: Bluetooth version: Version 4.1+EDR LCD resolution: 128x64 (1.8in) Rated working voltage: 12V-24V Ultimate working voltage: 9-32V USB1/2 output: 5V/2.4A MAX Support music format: MP3/WMA/WMV Support U disk capacity: 1G-32G Support TF card capacity: 1G-32G Signal to noise ratio: 68dB Frequency response: 20Hz-20Khz Left and right channel separation: 60dB Bluetooth transmission distance: less than 10M Bluetooth microphone effective distance: 0.5-2M FM transmitting frequency: 87.5MHz-108.0MHz Effective launch distance: 2M Size Chart: Size:approx. 64x55mm/2.52x2.17inch Package Includes: 1 Piece Bluetooth FM Transmitter 1 Piece Manual 1 Piece Remote Control  1 Piece 3.5mm Audio Cable Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping