ITEM NAME:35W TDA8932 Amplifier Board Mono Audio Power Amp Digital Module DC 12V 24V BX Features: Sound quality is very good by using this module. Mono digital audio power amplifier chip. High output and low power consumption. Applicable speaker impedance: 4/6/8 ohm(8 ohm is the best). Specifications: Working Voltage: DC 10-30V Recommended use voltage 24V Output 2A Power Supply Power Output: 35W Applicable Speaker Impedance: 4/6/8 ohm PCB Board Size: 45 * 31mm / 1.77 * 1.22in Package List: 1 * Power Amplifier Board Module.Mono digital audio power amplifier chip. Power Output: 35W. 1 Power Amplifier Board Module. Sound quality is very good by using this module. PCB Board Size: 45 31mm / 1.77 1.22in.