1. Excellent quality: high quality material, safe and . 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. It has the characteristics of small size, high efficiency, high power and small heat. Product name: 50Wx2 two-channel digital power amplifier board Product Model: XY-502 Supply voltage: DC4.5~27V Output power: 50W x 2 Protection function: reverse connection, overvoltage, undervoltage, overheating and short circuit Signal to Noise Ratio: SNR 102dB Number of channels: two-channel stereo Type: Audio Power Amplifier Board Module Type: Power Amplifier Board Type: Audio Power Amplifier Type: Digital Power Amplifier Board color:Blue+black Material:PCB size:63 x 51 x 22mm Package Contents: 2 x Amplifier Board Only the above package content, other products are not included. Note: Light reflection 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.