Don't miss another conversation again! The amazing TacAmplifier™ from Bell & Howell™ enhances your hearing with adjustable volume control so you can hear clearly with minimal background noise – even in noisy restaurants. Great for watching TV, too. The compact, discreet design is great for men and women. Fits comfortably in left or right ear. Includes 1 battery, cleaning brush and storage case. Plastic. 1"L x 3/4"H.