Specification: Features:_x000D_1. Wide application fields. Automotive electronics, network communication, security equipment, medical electronics, measuring instruments, smart home, household appliances, lighting electronics, 3C digital, radio and television education, wearable devices, new energy, Internet of Things IoT._x000D_2. 2.0 channel 2*15W high power mini digital power amplifier board adopts TPA._x000D_3. 3110 power amplifier chip. The chip does not require a heat dissipation sink. It has over-current and over-heat protection. It is very powerful._x000D_4. It is designed with the improved standard circuit of the official release. The power supply anti-back protection and the new design low-pass filter are added, and the bass thrust is stronger._x000D_5. Does not have any interference sound. No special shielding is required._x000D__x000D_Specifications:_x000D_Amplifier chip: TPA3110_x000D_Output power: 15W x 2_x000D_Working voltage: DC 8-18V_x000D_Working current: Max3A, static: 8mA_x000D_Efficiency: 90%_x000D_SNR: 100 decibels_x000D_Frequency range: 20Hz-20KHz_x000D_Speaker: 4-8_x000D_Size: Approx. 4*3.5*0.2cm/1.57*1.38*0.08in_x000D__x000D_Package List:_x000D_1 * TPA3110 Features: 1Wide application fields. Automotive electronics, network communication, security equipment, medical electronics, measuring instruments, smart home, household appliances, lighting electronics, 3C digital, radio and television education, wearable devices, 22.0 channel 2*15W high power mini digital power amplifier board adopts TPA. 33110 power amplifier chip. The chip does not require a heat dissipation sink. It has over-current and over-heat protection. It is very powerful. 4It is designed with the improved standard circuit of the official release. The power supply anti-back protection and the new design low-pass filter are added, and the bass thrust is stronger. 5Does not have any interference sound. No special shielding is required. PackageList: