ZK-1002T Features 1: Wide range of applications 2: Input method: AUX+Bluetooth 3: Bluetooth version: 5.0 (unblocked, 10 meters) 4: Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection 5: Easy to installDescription: Product name: 100W*2 bluetooth audio amplifier module with tone Product Model: ZK-1002T Bluetooth version: 5.0 (unblocked, 10 meters) Signal-to-noise ratio: >90 dB Input method: AUX+Bluetooth Number of channels: left and right dual channel (stereo) Power amplifier chip: TPA3116 / replacement chip (option) Adapter power supply: DC 12~24V/5A or above (the higher the voltage, the greater the output power) Adapter speaker: 20~200 W, 4~8 Output power: 20W*2 @12V, 8 35W*2 @12V,4 35W*2 @19V,8 60W*2@19V,4 50W*2 @24V,8 100W*2 @24V,4 Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection Tip: Only when the audio input is sufficient and the power supply voltage/current is sufficient will there be enough output power!!! The higher the power supply voltage, the greater the output power, the smaller the speaker impedance, the greater the output power!!! Please make sure that the power of the adapted power supply is greater than the actual working power of the power amplifier!!! Package list: 1*1002T 100WX2 high-bass adjustment bluetooth 5.0 audio amplifier board model set