Voice Amplifier is the revolutionary amplification system that is affordable and unnoticeable. Increases sound volume for hearing loss sufferers without costing a fortune. Just slip it in your right ear and you're ready to join in on the fun or conversation. Discrete 1/2" in diameter Voice Amplifier is safe and comfortable to wear. Features individual volume control, replaceable soft rubber tips and storage case. Voice Amplifier is a sound amplification hearing device not intended for medical purposes. Includes 1.5v button battery. This is the digital earpiece that amplifies and clarifies voices. An advanced microchip amplifies human speech frequencies above background noise so that spoken words are clearly audible. Unlike lesser analog models that merely make all sounds louder, this superior digital earpiece amplifies voice pitch so words are easier to discern. Same advanced microchip sound processor used in units costing thousands!