Feature:1. The decoding board supports Bluetooth 5.0 version and APP control and handsfree calls.2. The decoding module supports audio input 3.5AUXand3PAUX, and support USB sound card function.3. The decoder supports folder selection play, and switching between USB or SD or Bluetooth or FM or AUX.4. The MP3 decoder supports USB or card switching, previous song, next song, volume adjustment, EQ, play or pause, stop, single song repeat, mute, shutdown, direct song selection.5. It supports bluetooth previous song, next song, volume adjustment, play or pause, mute. It also supports poweroff memory function.Specification:Item Type: Decoding BoardMaterial: PCBPanel Size: Approx. 92x35x29mm or 3.6x1.4x1.1inHole Size: Approx. 75x27x29mm or 3.0x1.06x1.14inCenter Spacing of Screw Holes: Approx. 80mm or 3.15inPCBA Size: Approx. 71x29x20mm or 2.8x1.1x0.8inPower Supply Voltage: 5V or DC 7V-12V (different input terminals, choose one of the two channels)Current: 800MA-1ABattery: 1 x CR2025 .Package List:1 x Decoding Board1 x Power Cable1 x Connection Line1 x Remote Control