A voice amplifier is a compact, portable device designed to enhance and project the human voice with clarity and volume. Ideal for teachers, tour guides, coaches, and public speakers, it reduces strain on the vocal cords while ensuring clear communication. Most models are lightweight and wearable, often featuring a headset microphone and adjustable belt clip. They are powered by rechargeable batteries, offering hours of uninterrupted use. Many voice amplifiers support Bluetooth connectivity, enabling wireless audio streaming. With simple controls, users can easily adjust volume and switch modes. Durable construction makes them suitable for both indoor and outdoor use. Some models include recording features or support for USB/TF cards. Overall, voice amplifiers are practical tools for effective and effortless vocal projection.