Diitao Tda2030A Audio Amplifier Board Tda2030 Power Amplifier Board Power Input Product Details Module features: Onboard TDA2030A audio amplifier chip Mono 18W power amplifier circuit design Onboard 10K adjustable resistor, you can adjust the amplified volumeSpecification: Operating voltage: 6 ~ 12V Board size:L:32mm x W:24mm x H:25mm Module weight: 14g/pcs Package including: 8pcs x Power amplifier board module Working voltage: 6 ~ 12V?Board size: 31.6(mm)x23.2(mm) Onboard TDA2030A audio power amplifier chip 2, mono 18W power amplifier circuit design Onboard speaker terminal block, onboard power indicator, onboard 10K adjustable resistor, can adjust the volume of amplification The main pins of the chip have been taken out, and the audio signal can be directly input 7*24 Hours After-Sales Servic,Customer satisfaction is our greatest pursuit, if you found that our products do not work or quality not as good as you think, please contact us without hesitation Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.