<p>Function: Support reading MP3 songs in TF card or U disk.</p> <p>Treble, bass and master volume can be adjusted independently.</p> <p>Built-in Bluetooth receiver and FM radio function.</p> <p>With AUX input port, can be connected to PC\/Phone\/CD.</p> <p>Microphone input and guitar input, adjustable reverb.</p> <p>Support AC 110V\/240V or DC 12V voltage.</p> <p>Parameters:</p> <p>Product: Class D audio amplifier</p> <p>Model: TB01</p> <p>Amplifier IC: HT338</p> <p>Decoder chip: JL6951C (large IC, non-headphone chip, small IC)</p> <p>Input voltage: DC12V or AC110V-240V</p> <p>Output power: 1*60W or 2*30W (other powers can also be customized)</p> <p>Output impedance: 3-4\u03A9</p> <p>Recommendation: 4R\/30-80W speaker</p> <p>Channel: A: Mono</p> <p>Colour: Black</p> <p>Material: Plastic</p> <p>Note: Different factory batches, if there is a slight difference, it will not affect the use</p> <p>Package Contents:</p> <p>1 x TB02 amplifier board</p> <p>1 x remote control</p> <p>Only the above package content, other products are not included.</p> <p>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.</p>