Product name: 2.1 channel subwoofer power amplifier board
Supply voltage: 12-20V DC
Supply current: 3-5A
Maximum power: 2*25W+50W 8ohm
Minimum power: 2*15W+30W 4-8ohm

Bluetooth version: 5.0
Channel: 2.1
Job type: Class D
Product size: 96X48mm
Colour:black
Material:PCB+metal

Package Contents:
1 x Bluetooth power amplifier board