An excellent phone for the person with a mild to moderate loss. Amplifies sounds up to 40dB and has three tone settings. 2.4 GHz technology for more freedom of movement. Don’t miss any of those important calls - the handset has vibration setting and there is a bright visual alert on both the handset and base. The ringer volume is adjustable to 95dB. There are three one-touch emergency dial keys and 10 memory dial numbers. 3.5 mm audio jack for a neckloop and a 2.5mm headset jack and belt clip for hands free listening. Battery back-up for base keeps phone working in the event of a power outage. Hearing aid compatible. One year warranty.