Bluetooth module kit MP3 music fever assembly 3W mini 7 can be delivered to stock 34 groups are welcome to purchase without welding

Product Specification

Bluetooth module kit MP3 music fever assembly 3W mini amplifier audio with remote control USB electronic DIY.

Note: The complete set (without shell) includes a USB cable, a pair of 4 ohms 3W 2 inches speakers, a Bluetooth module, and remote control. The separate Bluetooth modules are the remote control and the Bluetooth module. The shell is a transparent acrylic shell in the store, with matching screws, the size is 10.7x6.1x6.1cm. This Bluetooth already has a power amplifier, so you can't connect to it anymore.

Product name: 3.7-5v Bluetooth mp3 decoding power amplifier supporting

Power amplifier size: 85x26x25mm

Channel output: 2 channels

Output power: 3w 3w

Power supply voltage: DC 3.7-5v voltage 5v exceeding 5v will damage the module

Rated current: 1.5A-2A

Power supply mode: 3.7v18650 lithium battery-powered 5v DC power amplifier USB power supply

Music format: MP3

Function support: Bluetooth connection U disk playback

Bluetooth MP3 decoder board operating instructions

MP3 Bluetooth power amplifier all-in-one panel

Supply voltage: DC5V

Corresponding frequency range: 20Hz-20KHz

Load impedance 42, 82,2*3-5W

Support around 2.0 sound

Support MP3 format, Bluetooth audio reception

Support previous song, next song, volume adjustment, play/pause function, switch button

Support power-off memory function: memorize the song and volume played before the power-off

Support MP1 Layer3, MP2 Layer3, MP3 Layer3 versions of songs

Support 32-320kbps MP3 songs

"Support mobile phone Bluetooth operation, support wireless effective distance of 10 meters

Usage and precautions:

1. After the MP3 decoder board is connected to the power supply, the machine enters the working state and enters the playback state

2. The machine enters the voice control state, and it will change with the size and frequency of the sound;

3. Turn on the Bluetooth function of the mobile phone, search for the device "BTWI" and connect, then turn on the music player of the mobile phone

The device, the played music will play your phone’s songs in the magic ball

4. When there is no music, the machine will enter the automatic mode, and once there is music, the machine will enter the voice control mode;

5. Insert the memory into the USB socket of the MP3 decoder board host, and the MP3 format songs in the memory will be played, blue

The indicator light flashes with the playing music;

6. Point the remote control at the music host and press any key for remote control operation

7. The direct angle between the remote control and the host should not exceed 45 degrees, otherwise, it will affect the remote control receiving sensitivity and remote control distance;

8. The remote control distance is 6-15 meters in the obstacle-free space

"Under the remote control state, it can realize the functions of the previous song and the next song volume plus volume reduction, pause playback, etc."

Wiring instructions: connect the white terminal to the speaker and the red terminal to the power supply

Reminder: Please strictly follow the product instructions. Improper use and wiring will cause the amplifier to fail to work normally or damage the amplifier.

Bluetooth panel size: length 85*width 26*depth 25mm

Screw pitch: 75mm

Mounting hole size: length 65*width 20*depth 20mm