Features 1. PROFESSIONAL DESIGN: TDA7377 digital power amplifier board module, 2x35W dual channel stereo, ideal for DIY sound equipment. 2. INPUT AND PORT PROTECTION: The module features a 3.5mm input and 3P extension input. Includes protection against reverse power connection, short circuit, overcurrent, and overheating. 3. POWER SUPPLY AND OUTPUT: Operates on DC 9-18V power supply, recommended 12V. Supports 4-8 ohm speakers, with maximum output of 2x35W stereo at 18V. 4. CIRCUIT BOARD AND CAPACITORS: Built with high-quality black gold-plated PCB, KEMET audio capacitors, and dual NICHICON high-capacity filter capacitors per channel. 5. FINE CRAFTSMANSHIP: Equipped with custom pure black copper terminals, gold-plated audio input connectors, and customized 3P black terminals. Specification Item Type: TDA7377 Digital Power Amplifier Module Material: PCB, Metal Chip: TDA7377 Power Supply: DC 9-18V, Recommended 12V Output Power: Supports 4-8 Ohm Speakers, Maximum 2x35W Stereo (18V) Input: 3.5mm Input, 3P Extension Input Protection: Reverse Polarity, Short Circuit, Overcurrent, Overheating Package List 1 x TDA7377 Digital Power Amplifier Module