Invisi Ear™ lets you hear everything you’ve been missing! Lightweight, mini­ature amplifier maximizes your natural ability to hear sounds and spoken words … even at distances. Clear tube fits the contour of your ear, making it virtually invisible. Nobody will know it's there! Fits comfortably in either ear. Includes batteries and 6 silicone earplugs in different sizes, adjustable volume control.  Replacement batteries (4) which last about 100 hours each are also available.