We are now selling an upgraded amplifier for small projects. Please check out PAM8302 Mono Amplifier If your project needs an audio amplifier, this module should be useful. It is a miniature module for amateur projects. Simply connect a 4-8 Ohm speaker and amplify your sound. It can be used with the FM receiver kit or WTV020SD-16P music module. You can definitely use this module for other musical projects also. Features: On-board LM386 Chip Gain= 200. On-board speaker wiring block. On-board 10K variable resistor, you can adjust the volume with it. On-board power indicator. The chip pin leads can directly input audio signal Operating voltage: 5V Size: 41 x13 mm Documents: Making an audio amplifier on a breadboard (schematic is available on the page) Datasheet The following images show how you can use the module: Package Includes: 2 or 5 or 10pcs LM386 Audio amplifier module