1. Excellent 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 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.<br><br>Product name: 50Wx2 two-channel digital power amplifier board Product Model: XY-502 Supply voltage: DC4.5~27V Output power: 50W*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<br><br>Package Contents: 1 x Amplifier Board<br><br>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.