Feature:
1. This is a 5V speaker decode board with amplifier, directly connected to the speaker, with Bluetooth and memory card function.
2. LIN adjustable to control external audio input volume and mute.
3. The potential of the panel is dual-purpose for power switch and volume adjustment.
4. 4 buttons, 10W amplifier (2*5W) with AUX, FM, USB, SD and Bluetooth.
5. Support for Bluetooth4.0EDR.
6. Support USB/SD/Bluetooth/FM/LINE automatic switching.
7. Support MP3/WMA/WAV/FLAC format music.
8. Support USB, SD, card for playing.
9. Support USB/SD card switching, previous song, next song, fast forward, fast reverse, knob volume adjustment.
10. Support FAT16, FAT32 file system.
11. Supports songs of MP1 Layer3, MP2 Layer3, and MP3 Layer3 versions.
12. Support power-off memory function: remember the song and volume played before power-off.

Specification:
Material: ABS
Color: Silver
Working voltage: DC5V
5V (the 3.7V-5V is connected to the back of the board. If the 3.7V lithium battery is used, the 3.5DC5V hole of the panel is the input of charging)
Working current: 800MA-1.2A
Output amplitude: 10W (connected to two 4 ohm 5W full-range speakers)
Panel size: 135 * 73 * 45 MM
Opening size: 117 * 54 * 45 MM/;
Size: 135 * 73 * 45mm / 5.3 * 2.9 * 1.8in
Weight: approx. 93g

Package List:
1 * Decode Board

Panel description:
1. PREV/VOL-: Use a potentiometer with a switch;
2. PLAY/PAUSE: In the USB/SD/Bluetooth state, short press play/pause; in the FM state, long press the full channel search station and save the station.
3. Upper/Slow: When/; USB/SD playing status, press and hold for fast forward and fast reverse; in Bluetooth state, short