ITEM NAME:PAM8406 5Wx2 5V Two Channel Stereo Class D Audio Amplifier Board Module Description: 5W+5W Class D Digital Amplifier Supply voltage: DC 5V (Do not overpressure, overpressure will burn IC) Input method: single-ended Output power: 5W 2ÃŽ © 5V \ 3W 4ÃŽ © 5V \ 1.8W 8ÃŽ © 5V High-grade pure black gold circuit board, imported audio capacitors, large-capacity filter capacitors per channel. Total harmonic distortion plus noise: