TV Ears actively clarifies and amplifies speech and dialog while lowering background noise so you can easily hear whats happening on your television. Utilising infrared technology ensures lag & interference free television audio. Voice clarifying circuitry decreases the volume of background sounds such as music and sound effects to make even whispers and accents easily understandable. Ultra lightweight wireless headset with background noise cancelling foam tips included. Foam ear pieces. 8mm driver. Button cell battery (included) .