12V Car Bluetooth MP3 AUX FM Decoder Board Audio Decoding Module TF SD Card USB Radio with Remote Control?Without Button Cell?

The Remote Contron: POWER: STANDBY button cannot switch. MODE: (1)TF card and U disk: switching sequence for USB?TF?Bluetooth?FM?AUX; (2)Only U disk: switching sequence for USB?Bluetooth?FM?AUX; (3)Only the TF card: switching sequence for TF?Bluetooth?FM?AUX; (4)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 rewind;In FM MODE, short press for last channel,long press for scan search last channel. NEXT: In USB/TF/Bluetooth MODE,short press for NEXT;In USB/TF MODE,long press for fast forward;In FM MODE,short press for next channel,long press for scan search the next channel. VOL + : short/long press for music. VOL - : short/long press for music. Switch:In USB/TF MODE,is the switch key between single repeat and whole cycle when play music,boot for all cycle. STOP: In the USB/TF MODE,short press to STOP the music play. MUTE: MUTE,press for MUTE,press again for relieve(also can relieve by VOL- /VOL+). EQ: Acoustic field MODE.The NORMAL?BAS?POP?ROC?JAZZ?CLA?CUT?NORMAL PLAY/PAUSE:In USB/SD/Bluetooth MODE for PLAY/PAUSE;In the FM MODE,long press for searching all channels and save. Descriptions: Installation pitch: 93.5 mm wide Overall dimensions: 106?W? *25?H? * 38?deep?mm Out diameter of screw hole:7.5mm Inner diameter of screw hole:3.5mm Input voltage:12V Package Content: 1 x Decoding board 1 x The remote control(without button cell) 1 x 2Pin plug wire with power supply reverse connection protection 1 x 3Pin audio plug thread