Audio Amplifier PAM8403 Board DC 5V

• Operating voltage: 2.5V~5.5V
• Speaker With: 4~8ohms, recommended: 4ohms
• Speaker Power: 2~8W
• Can use the computer USB port 5V power supply or using a mobile phone charger USB port 5V power supply, battery power can also be used
• Noise canceling circuit was built in the amplifier board, no pop noise when power on / off; With short-circuit current protection and over-temperature protection