AMPLIFIER HEARING DIGITAL OVER EAR Battery-powered, over-the-ear hearing amplifier features 4-level volume control that allows users to customizethe sound Amplifier consists of a comfortable earplug with interchangeable sizes connected by a flexible earhook Ideal for practically all ages and ear sizes to amplify environmental sounds Notintended for use by individuals diagnosed with hearing issues Powered by size A675 battery; 2 batteries areincluded (Replacement Battery B-UA675 is sold separately) Unit: EA