Stereo Audio Amplifier – PAM8403 with Volume Control
Features

Dual channel stereo output 3 w + 3 w power Class D
Works with 2.5V-5v power supply
High amplification efficiency 85%
can directly drive 4 Ω/8 Ω small speakers
Good sound quality & noise suppression
Unique without LC filter class D digital power board
Can use computer USB power supply directly
Small Size, can easily fit in a variety of products
Note when using

Input audio should be via sheilded wire for best performance.
Use proper filtered power supply with good filter capacitors.
Take care not to short speaker wires else IC will get damaged.
Make sure power supply never exceeds 5.5V else IC will get damaged. Use regulated power supply