WUZHOU Wireless Amplifier Module TPA3116 HiFi 50W DC 5V-27V Receiver Stereo Board Amplifier Board Wireless amplifier board supports two input methods, you can directly connect to wireless wireless 5.0 or select AUX input This stereo amplifier module can be used with D 5V-27V and 4/8 ohm 30W-200W speakers, 30W-50W recommended Using TPA3116D2 Class D chip, even when working at high power, the distortion is less than 0.1%, and the modulation frequency is as high as 1.2MHZ This amp module supports reverse connection, overvoltage, undervoltage, overheat, and short circuit protection The built-in filter capacitor can filter out noise and make the human voice clearer, this amplifier module can be freely controlled within 15 meters Colour: Black Size: (81.8+21.3)*50mm Quantity: 1pc 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering. 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding. 3. Only the above package contents, excluding other products.