Specification Brand : IndustrialField BulletPoint1 : Amplifier Board Sound Audio amplificador for Speakers TPA3116D2 50Wx2 100W BulletPoint2 : Developed Countries Estimated Delivery Time: 7-17 days(trackable),Other countries Estimated delivery time : 8-30 days.----- We provide Expedited Shipping service : 3-8 days.(excluding handling time).If the order amount above US $200, we will use Expedited Shipping service for free. BulletPoint3 : If it is not delivered within the specified time, or if it is not satisfactory. You only need to send a refund request and we will refund you in full. BulletPoint4 : We make every effort to provide customers with satisfactory service.any question,please feel free to contact me. BulletPoint5 : any question,please feel free to contact me. ExternallyAssignedProductIdentifier : 4793392475360 ExternallyAssignedProductIdentifier1 : 0729530472032 ExternallyAssignedProductIdentifier2 : 729530472032 ItemName : Amplifier Board Sound Audio amplificador for Speakers TPA3116D2 50Wx2 100W ItemPackageQuantity : 1 ItemTypeKeyword : electronic-component-audio-amplifiers Manufacturer : IndustrialField Material : wood NumberOfChannels : 1 PartNumber : IF-modulen_10355 ProductDescription : Specification: The amplifier board adopts two imported TPA3116D2 digital amplifier chip as the core,one piece as left and right channel power amplifier,other piece as pre-bridge driver with NE5532 subwoofer,with a small,high efficiency,high power characteristics. Product Name:2.1-channel audio amplifier board Chip Select:TPA31116D2*2 Supply Voltage: DC 12-24V Output Power: 50W*2+100W Subwoofer *1 Output Impedance:4~8Ω Frequency Range: 14~100Khz SNR:100db Number of Channels:3(Left Channel,Right Channel,Subwoodfer) Switching Frequency: 1.2MHz Size: L*W*H/10*9*2.5cm/3.93*3.54*0.98'' ProductSiteLaunchDate : 2019-10-14T19:05:47.745Z Voltage1 : 12 volts Voltage2 : 50 volts