Contactas Clipboard Infoloop for Hearing Aid Wearers and Portable Information Loop for Hearing Aid Wearers are designed to assist those who are hearing impaired. Hear more clearly and write more easily on the go with the Clipboard Infoloop, which has a built-in amplifier and an electro-magnetic field that extends to a maximum of 1.2m. The Portable Information Loop improves sound quality for those who wear hearing aids, offering desktop assistance by allowing communication directly with the hearing aid wearer through their t-coil. This single control unit, made of durable ABS plastic, incorporates a microphone, amplifier, induction loop aerial and rechargeable battery system.