Description<br>Onboard TDA2030A audio power amplifier chip<br>Mono 18 w power amplifier circuit design.<br>Socket onboard horn .<br>The onboard 10 k adjustable resistance  can adjust the volume of the amplification<br>The onboard power light.<br>Chip has lead to the main pin  can directly input audio signal.<br>Working voltage: 6 -12 v.<br> Board size: 31.6 (mm) x23.2 (mm)<br><br><br><img src="//gdetail.image-gmkt.com/030/717423496/2016/4/f5e59ed7-f458-474b-8e81-cd8a672b4e76.jpg"  width="947" height="947" onerror="this.src='http://gdetail.image-gmkt.com/030/717423496/2016/4/f5e59ed7-f458-474b-8e81-cd8a672b4e76.jpg'; $(this).attr('onerror'，'');" ><br><br><img src="//gdetail.image-gmkt.com/030/717423496/2016/4/cdce0859-ce37-4eae-b545-3ee5e3215e0d.jpg"  width="945" height="945" onerror="this.src='http://gdetail.image-gmkt.com/030/717423496/2016/4/cdce0859-ce37-4eae-b545-3ee5e3215e0d.jpg'; $(this).attr('onerror'，'');" ><br><img src="//gdetail.image-gmkt.com/030/717423496/2016/4/70866525-10d7-4c1a-970c-253cecfa21eb.jpg"  width="940" height="940" onerror="this.src='http://gdetail.image-gmkt.com/030/717423496/2016/4/70866525-10d7-4c1a-970c-253cecfa21eb.jpg'; $(this).attr('onerror'，'');" ><br><img src="//gdetail.image-gmkt.com/030/717423496/2016/4/4b9f880d-2555-4e61-bfff-2d11db7c9808.jpg"  width="940" height="940" onerror="this.src='http://gdetail.image-gmkt.com/030/717423496/2016/4/4b9f880d-2555-4e61-bfff-2d11db7c9808.jpg'; $(this).attr('onerror'，'');" ><br><br><br>Packaging Details<br>Unit Type: piece Package Weight: 0.031kg (0.07lb.) Package Size: 19cm x 15cm x 2cm (7.48in x 5.91in x 0.79in)