ITEM NAME:12V Bluetooth 4.2 Car MP3 WMA / WAV Audio Module USB SD FM TF Radio Descriptio n Specification Installation pitch: 92 mm wide Installation hole: 83 x 20 x 38 mm Overall dimensions: 107*25*38mm/ 4.21*0.98*1.5 " Input voltageï ¼Å¡7-12V Descriptions 100% Brand New and high quality support bluetooth (Bluetooth3.0 EDR) (after been paired with mobile phones can realize wireless music play) support USB/TF/Bluetooth/FM/LINE switch.MP3/WMA,WAV lossless music decoding chip. support USB/TF card switch,PREV,NEXT,fast forward,fast rewind, volume,EQ,play/pause,stop,single repeat,mute, shutdown and direct election. support Bluetoot PREV,NEXT,volume,EQ,play/pause,mute,turn it off. support FAT16,FAT32 file system.Support for MP1 Layer3,MP2 Layer3,MP3 Layer3 version of the song. Support 32-320 KBPS MP3 songs. support power off memory function: memory play songs and volume before power off. Note: Non-smart phones (android) have to enter the password - 0000 Decoding board play mode instruction Decoding board in the absence of memory card or U disk,boot default to "audio input" mode,the screen display LINE Press "MODE" key on the panel or the remote control switch to bluetooth MODE,the screen shows "BLUE",can open bluetooth search connection at this time Press "MODE" key on the panel or the remote control switch to radio MODE,the screen display FM radio frequency,long press "PLAY" button automatic searching channel Press "MODE" key on the panel or the remote control switch to the U disk or memory card "play MODE",the screen displays the time schedule of the song The remote control instruction: POWER: STANDBY button cannot switch. MODE: TF card and U disk: switching sequence for USB→TF→Bluetooth→FM→AUX;Only U disk: switching sequence for USB→Bluetooth→FM→AUX;Only the TF card: switching sequence for TF→Bluetooth→FM→AUX;There is no USB and TF card: switching sequence for FM→AUX→Bluetooth. PREV: In USB/TF/Bluetooth MODE,short press for PREV;In the USB/SD MODE,long press for fast rewin.MODE: TF card and U disk: switching sequence for USB→TF→Bluetooth→FM→AUX;Only U disk: switching sequence for USB→Bluetooth→FM→AUX;Only the TF card: switching sequence for TF→Bluetooth→FM→AUX;There is no USB and TF card: switching sequence for FM→AUX→Bluetooth.