new arrival bluetooth car kit wireless fm transmitter handsaux modulator car audio mp3 player 3.1a dual usb port

product description: support tf card and u disk ,refined and small portable automatic storage memory after power off(only with micro sd card) anwser/hang up the call connect navigation ultra-low power,power saving only consumpt 5% of electricity when play 1 hour music with bluetooth built-in intelligent microphone for excellent sound quality specification: voltage: 12~24v support music format: mp3/wma/ape/flac/wav frequency: 87.5~108mhz tf card: 512m~32g (not included) u disk: 512...