Feature:1. HIGH EFFICIENCY: Adopt digital amplifier chip TPA3116D2 class D operation, with greater than 90% power efficiency and low idle loss characteristics.2. STABLE OPERATION: Advanced modulation system configuration, high integration reduces the number of components, stable and reliable in operation.3. CIRCUIT PROTECTION: Integrated self protection circuit, includes overvoltage, undervoltage, overtemperature, DC detection and short circuit protection.4. FOR AUDIO DEVICES: Dual channel power amplifier board, with treble and bass adjustment, output power is 120W x 2, widely used in DIY audio equipment.5. EASY INSTALLATION: This replacement board for the 3116D audio amplification module is designed for simple and hasslefree installation.Specification:Item Type: Digital Amplifier BoardMaterial: PCBChip Type: TDA3116D2Supply Voltage: DC12-24V (inside positive outside negative)Supply Current: > 3AOutput Power: 120W x 2Number of Channels: Dual Channel (treble and bass adjustment).Package List:1 x Amplifier Board1 x Cable Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.