Description: You don’t need to modify your car and you can enjoy music or have a call while driving. It is bluetooth-compatible A2DP technology that allows audio and lossless music transfer from phone to the car stereo. It is made of good quality material, durable to use. It has built-in FM transmitter, MP3 decoding, and stereo bluetooth-compatible wireless transmission chip. The length of this product is 9.1cm, the width is 7.9cm and the height is 6.4cm. It supports lossless audio decoding. It is suitable for car. It can play the audio or songs in the U disk, mobile phone through your car stereo. Item Name: FM Transmitter Material: ABS,Metal Supply Voltage: Dual Cigarette Lighter: 12-24V (Maximum 100W) Operating Temperature: -10 Degree Celsius~70 Degree Celsius Frequency Response: 20Hz～15Khz Bluetooth Version: V3.0+EDR Bluetooth Sound Processing: A2DP Rated Operating Voltage: 12V-24V Music Format: MP3/WMA/WAV/FLAC Signal to Noise Ratio: 68dB Dual USB Output: 5V/3.1A(2.1A+1A) Bluetooth Transmission Distance: 10-15M Effective Distance of bluetooth-compatible Microphone: 0.5-2M FM Transmitting Frequency: 87.5-108Mhz Support Agreement: HFP/HSP,OPP,A2DP/AVRCP,PBA Cable Length: 64.2cm Voltage Limit: 9V-30V Size Details: Size: 9.1cm x 7.9cm x 6.4cm/3.58" x 3.11" x 2.52" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x FM Transmitter 1 x User Manual