2.1 channel power amplifier board description: 1. The remote control, U disk, and AUX terminals have been connected to the Bluetooth power amplifier board. The corresponding plugs must be inserted and the line functions can be matched to work. You cannot solder the end lines yourself, and there is a risk of burning the Bluetooth chip.
2. Power and power supply: regulated switching power supply: up to 20V; 12V power supply maximum power 2*15+30W 4Ω; 20V power supply maximum power 2*25+50W 8Ω

Product name: 2.1 channel subwoofer power amplifier board
Supply voltage: 12-20V DC
Supply current: 3-
Maximum power: 2*25W+50W 8Ω
Minimum power: 2*15W+30W 4-8Ω
Bluetooth version: 5.0
Channel: 2.1
Job type: Class D
Product size: 96 x 48mm
color:Blue
Material:PCB+Metal

Package Contents:
1 x Bluetooth power amplifier board
1 x AUX audio cable

Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.