Super Mini: 1.85*2.15cm
Input voltage: 2.5-5V (can’t be more than 5.5V, otherwise it will burn the ICs on board)
It could work with 4 Ohm and 8 ohm Speaker.
Output power: 2 channels *3W
The left and right channel output of “negative” cannot be connected together, otherwise it will burn the IC.
Connect the speaker (load) and then powered.
1 x PAM8403 Mini Digital Power Amplifier Board