Product model: XY-T50HProduct name: 50W+50W high-bass adjustable stereo Bluetooth power amplifier boardPower supply: DC5-26V/5A or aboveBluetooth version: 5.0Audio input: Bluetooth+AUX+USB stick+USB sound card Audio output: passive speaker+3.5mm interface stereo outputVolume adjustment: high-end encoder knob adjustment, smooth feelFrequency range: 20Hz-30KHzSignal-to-noise ratio: 92dBApplicable horn: 10W-200W/4 - 8 Output power: 50W * 2Protection mechanism: static electricity, overvoltage, undervoltage, overheating, DC detection and short circuit protectionSpecial function: support Sinilink-APP controlProduct size: 95mm x 70mm x 25mmcolor:BlackMaterial:PCB+metal Package Contents:1 x XY-T50H power amplifier board1 x DC adapter Only the above package content, other products are not included.Note: Light reflection 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.