<p>Output power: 15W*2 (left and right channels) + 30W (subwoofer)</p> <p>Satellite box (left and right channel) adapted speakers: 5W-30W\/42-160</p> <p>Subwoofer (subwoofer) adapted speakers: 5W-50W\/40-8Q</p> <p>Protection mechanism: electrostatic protection, overcurrent protection, short circuit protection, overheating protection</p> <p>Unique functions: Support Sinolink-APP, modify Bluetooth name, set Bluetooth password, turn off\/on the prompt tone</p> <p>Product model: XY-E30H</p> <p>Name: 2.1 channel Bluetooth audio power amplifier board module</p> <p>Power supply: DC9-24V\/3A above</p> <p>Bluetooth version: 5.1</p> <p>Audio channel: 2.1 channel</p> <p>Audio input: Bluetooth + AUX</p> <p>Audio output: left and right channels + subwoofer</p> <p>Volume adjustment: high-end encoder knob adjustment, smooth feel</p> <p>Frequency range: 20HZ-30KHZ</p> <p>Signal to noise ratio: 92db</p> <p>colour:Black</p> <p>Material:plastic</p> <p>size:70 x 73 x 20mm</p> <p>Package Contents:</p> <p>1 x 2.1 channel Bluetooth audio power amplifier board module</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light 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.</p>