The Clarity D703HS is an additional handset for the D703 Clarity amplified cordless phone as well as the E814 and E814CC corded and cordless products. This handset uses Clarity’s patented hearing technology to make hearing easy again by minimizing background noises, eliminating feedback and distortion and managing soft/loud sounds to product clarity. It amplifies incoming calls up to 30 dB or 6 times louder than a standard home phone.