Product name: 2.1 channel Bluetooth audio amplifier module
Product model: YS-TB21S
Bluetooth version: 5.1
Input mode: Bluetooth+AUX+USB disk+USB sound card
Number of channels: 2.1 channels (left and right channels+subwoofer)

Volume adjustment: high-end encoder knob adjustment, smooth feel
Power supply: DC12-24V greater than equal 8A
Input sensitivity: 500mV
Output power: left and right channels less than equal 50W, subwoofer less than equal 100W
Adaptive speaker: 20-50W, 4-8 Ω for left and right channels; Subwoofer 20-100W 4-8 ohm
Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection
Special function: support YS Audio APP control
Product size: 118 X 100X 23mm
Prompt: When the audio signal input is large enough and the power supply voltage/current is large enough, there will be enough output power! The higher the power supply voltage, the greater the output power, the smaller the horn impedance, and the greater the output power! Please ensure that the power of the adaptive power supply is greater than the actual working power of the power amplifier!
Colour:black
Material:PCB+metal

Package Contents:
1 x amplifier board
1 x DC adapter
1 x screwdriver