Features:<br/>LED digital display screen can display frequency point, song serial number and working status information, with built-in high-sensitivity microphone, HSP background noise and echo suppression.<br/>Automatic detection of battery voltage, voice reminder, instant voltage viewing<br/>Bluetooth smart MP3 player, supporting mobile phone / network / all kinds of Music App software playing<br/>Support mainstream map app navigation voice broadcast and QQ / wechat other software language broadcast functions<br/>Support lossless audio decoding, high resolution, high performance stereo, support wma, ape, FLAC, WAV and other lossless music formats. (97% of car Bluetooth on the market does not support FLAC and APE formats)<br/>Dual USB foot 3.4A, with intelligent identification, fast charging<br />It is support Quick Charge,3.0 version.<br /> <br/>Specifications:<br/>Working voltage: 12v-24v<br/>USB output voltage: DC / 5V<br/>Dual USB output current: 3.4A dual USB intelligent current<br/>BT version: Bluetooth 5.0<br/>Effective distance: about 10m<br/>Launching distance: &lt; 5m<br/>Support TF Card / U disk capacity: ≤ 32GB<br/>Voltage detection range: 6-30v<br/>Power mode: power supply of cigarette lighter<br/>Package size: 8 * 4.6 * 13.2cm / 3.15 * 1.81 * 5.2in<br/>Package weight: 59G / 2.08oz<br /> <br/>Packing list:<br/>1*Car FM Transmitter <br/>1*User Manual