Based on the PAM8403 chip, this small class D stereo amplifier is capable of delivering a maximum power of 3 W on 4 Ohms (also works with 8-ohm speakers). Power supply: from 2.5 Vdc to 5.5 Vdc, output power: 2x3 watt (5V 4 ohm), dimensions (mm): 21x18x3.2. Particularly suitable for use with small MP3 players.

Warning! do not connect the negative of the right and left channel together, otherwise the integrated will be burned. Do not supply with a voltage greater than 5.5 V and do not reverse the polarity.