1. Excellent quality: high quality material, safe and durable. 2. Stable performance: with better noise performance, excellent output drive capability and relatively high small signal bandwidth, large power supply voltage range. 3. High fidelity: When used as an audio amplifier, the tone is warm and the fidelity is high. 4. Wide range of uses: suitable for high quality and professional audio equipment, instruments, control circuits and telephone channel amplifiers. 5. This power amplifier module samples TPA3116 digital power amplifier chips, It has the characteristics of small size, high efficiency, high power and small heat. Model: ZK-502C Material: ABS colour: black Package Contents: 1 x Audio Amplifier Board Module 1 x DC Cable Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.