LinkMejor Mini PAM8403 Module Digital Amplifier Board 2 * 3W Class D 2.5-5V USB Power

Great Sensors for Project. Having Fun With Electronics and Programming! Description:D class amplifier is efficient and would not change the sound quality when temperature rise. No heat sink needed.Can provides 3W (left channel) and 3W (right channel) output power in 4Ohm load and 5V power supply.Application: LCD TVs, monitors, portable speakers, portable DVD players, game consoles.Note: Left and right channel output "negative" can not be connected together, otherwise it will burn the IC. The horn (load) should be connected before power on. Specification:Working Voltage: DC 2.5V-5.5VFit Speaker Power: 4-8Ohms (Recommended: 4Ohms), 2-8WPCB Size: 25mm x 18mm (L*W) Package Includes:1 x PAM8403 Module