Output Power - 220W+220W+350W amplifier board featuring treble and bass adjustment, DC 12-38V, bluetooth and AUX inputs, 2.1 channel stereo AMP board for DIY wireless speakers, no password required. Multiple Input Methods - Amplifier board offers Bluetooth 5.1, USB sound card, USB flash drive, and AUX connectivity. This enables a variety of devices to be linked to the amplifier board, such as smartphones, laptops, tablets, and other audio sources. Independent Adjustment - Three knobs separately manage the treble, bass, and a multifunctional volume knob that combines functions like pause, skip song, and power on/off.
Smart Protection Mechanism - This amplifier board is built with an intelligent control system to guard against problems like short circuit, over-voltage, under-voltage, overheating, and clipping of the amplifier board