Item Type: Digital Power Amplifier Board <br>Material: Plastic <br>Input Voltage: DC5V <br>Audio Input: 3.5mm AUX Audio Cable <br>Number of Channels: 2 Channels <br>Output Power: 2 x 3w <br>Size: Approx. 37 x 22 x 43mm / 1.5 x 0.9 x 1.7in<br>1、[Dual Channel] For XH?A157 dual channel digital power amplifier board, input voltage is DC5V, stable output, very practical. <br>2、[3.5mm AUX] Uses 3.5mmAUX audio input, onboard 50K audio adjustment relay, which can be used to turn on and off the power amplifier. <br>3、[Free Adjustment] The volume can be adjusted freely. This power amplifier also has a dual channel audio output with a power of 2 x 3w. <br>4、[Plastic Material] The Power amplifier board is made of finely crafted plastic material, which is sturdy and durable and has a long service life. <br>5、[Lightweight and Portable] Digital power amplifier board is light in weight, small in size, easy to carry and store, convenient and fast, and stable in performance.<p>1 x Digital Power Amplifier Board</p><p>3 x Line</p><p>1 x Hnob Hat</p><p>2 x Washers</p>