Clarity® Power™ amplified telephone. With up to 30 decibels of amplification and a built-in answering machine, the C320™ is an ideal solution for those with a mild to moderate hearing loss. Answering machine features message playback through base speaker or handset and 14 minutes of total recording time–60 seconds per message. There are 10 speed dial memory keys and 3 extra large programmable help buttons; large, lighted dial pad with adjustable nite-lite feature; large visual ringer and 6 different audible ring styles. Internal backup system provides 25 dB of Clarity Power™ in the event of a power failure–no batteries required. 3.5mm neckloop jack and 2.5mm headset jack. One Year Warranty.