The Geemarc Ampli600 Amplified Emergency Connect Telephone is a multifunction corded phone with Extra Loud Amplification (UP TO 50dB) adjustable amplification with speaker phone. This emergency phone has two wateproof remote emergency transmitters included with 6 number emergency auto dial. Once the emergency button is pressed, the six pre-programmed emergency contact numbers are dialed, such as family members, friends or neighbors who would be able to respond to the emergency call. If there is no response after 30 seconds or the line is busy, the phone automatically dials the next pre-programmed phone number. It will cycle through the emergency numbers twice. The Geemarc Ampli600 Amplified Emergency Connect Telephone is also Hearing Aid Compatible with programmable emergency voice announcement. Hearing Aid Compatible Has waterproof remote emergency transmitters included with 6 number emergency auto dial Hands free dialing capability 3 emergency buttons 9 memory buttons Up to 50 dB adjustable amplification with speaker phone Extra loud extra clear speakerphone Extra bright visual ringer indicator (strobe)