This wireless rechargeable earpiece amplifies sound from a television or radio by up to 50 decibels. As discreet as a wireless cell phone headset, the device has a directional microphone that amplifies a television or radio to produce clear, easy-to-hear tones. The adjustable foam loop holds the earpiece comfortably to your ear and three different-sized soft silicone tips allow you to choose one for an optimal fit. The volume adjusts with the touch of a button. The lithium-ion battery powered earpiece operates for up to 10 hours after a four-hour charge via the included AC charger. 3 3/4" L x 1 3/4" D x 2" W. (3/4 oz.)