The Pocketalker is an assistive listening device designed to improve communications in difficult listening situations. The Pocketalker personal amplifier is used to amplify specific sounds or voices. It helps you hear what you want to hear by reducing distracting background noise. The Pocketalker delivers clear, distinct sound, while its large, manageable controls provide for easy operation. To use, simply plug the included earphone or headphone into the headphone jack. Position the internal microphone near the preferred sound and adjust the volume and tone control until the sounds you want to hear are clear. Use the Pocketalker to improve listening on a one-to-one basis, in small group situations, while listening to your favorite TV or radio programs, or while riding in the car. Features: Ergonomic, lightweight design Extended high and low frequency range Superior sound quality Internal microphone Built-in T-coil loop compatible Rechargeable ready CE (Note 1) Approval Click here to watch a video about Williams Sound Pocketalker 2.0 . Click here for more information on Williams Sound Pocketalker 2.0 .