Check the listing for details. High-power Amplifier Speaker Protection Board. Color: Black, Condition: New. Listed at 19.73 USD. High-power Amplifier Speaker Protection Board The main parameters: ●PCB board is 2.0MM FR4 board ●PCB copper foil is 2 ounces ●PCB size: 78.5MM*62MM ●Working voltage: AC110-220V ●Relay protection current 30A, suitable for high-power power amplifier board ●Product weight: 0.1kg ●Product height: 35mm ●Function: ●Direct AC 110-220V power supply, no need to add a power transformer ●Delay protection ●Power amplifier midpoint potential protection Delivery content:1pcs High-power Amplifier Speaker Protection Board Delivery Details We provide standard shipping to international via China Post airmail or Hongkong Post airmail with tracking number.Contact us if not receive items. We only ship to the approved address given in Paypal Payment.Please make sure payment address in Paypal is correct.Any non-received items caused by invalid address registered on Paypal are not in our full refund or replacement policy. Returns and Replacements We accept returns and replacements within 30 days from the day the cutomer receive the products.Please make first contact within 30 days from receiving the order.Products should be returned in original condition. About Feedback We will try our best to solve any dispute and satisfy our customers. Please contact us firstly if you have any problems.As you know,a negative feedback can deal nothing and the positive feedback is very important for us.So we hope to your understanding.And we will appreciate if you would like to contact us for solving your problems.Thanks!