A Low-Voltage Audio Power Amplifier is a device designed to amplify audio signals while operating at low supply voltages, typically between 1.8V to 5V. These amplifiers are commonly used in battery-powered devices like portable speakers, headphones, and other mobile audio applications where power efficiency and compact size are crucial.

Small, inexpensive AI pendant. Records sound after user presses a button. Indicate behavior with RGB LED. Onboard processing and cloud connectivity through mobile phone tethering.