CHENBO(TM)5PCS PAM8403 module Super board 2 * 3W Class D digital amplifier board efficient 2.5 to 5V USB power
[Product Information]
Operating voltage: 2.5V-5.5V
Speaker With:4-8ohms recommended:4 ohms
Speaker Power :2-8W
PAM8403 mini digital amplifier board
Note: The left and right channel output of the "negative" can not, and then together, otherwise it will burn the IC and energized speaker (load) connected before