Feature 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 24VSupport music format MP3 WMA APE FLAC WAVFrequency 87 5 108MHzTF card 512M 32G Not included U Disk 512M 32G Not included SNR 85 db fm 65dB Transmission Distance 5mOperating temperature 0 60 celsiusColor Blackbluetooth version bluetooth 4 0 How to use Turn to the same frequency of car FM and the item Turn on the bluetooth of your phone find the HY82 and connect with it Then you can play music through bluetooth Press button Short press once anwser hang up the callplay pause music Package included 1 x Car MP3 Player1 x User Manual