If you need a small amplifier that can operate on a wide low voltage range, is easy to use and drives a 4 or 8 Ohm speaker - then these Mini Class AB Mono Power Amplifier Modules from PMD Way solve the problem. Use the options menu to select between packs of five or ten, both with free delivery. Specifications: Operating voltage: 2.2 ~ 5.5 V Power output at 5.0 V, 10% THD+N, 4 Ohm 2.0 W (typ.) Power output at 5.0 V, 1% THD+N, 8 Ohm 1.5 W (typ.) Frequency response: 150~20kHz Efficiency 90% Schematic: Dimensions: Don't forget to check out our full range of amplifier breakout boards if this doesn't meet your needs. And as always, all orders receive free delivery. And remember ... if you: can't find what you need not sure what to order want a bulk deal need technical support or just want to have a talk ... Please email us via [email protected]. To keep up to date with new products, news, tutorials and more - we're on x, Facebook, Instagram, threads, reddit, and instructables.