The ClearSounds A100 Amplified Cordless Phone combines 55dB adjustable handset amplification with interference-free DECT 6.0 technology to deliver loud, clear calls with superior sound quality. Other features include a 6-level ringer volume control, 10 adjustable ring tones, Caller ID and a handset speakerphone. Its great for the hard of hearing and is hearing aid compatible. - Clearsounds A100 amplified handset - 55dB (110dB SPL) adjustable handset amplification - 6-level ringer volume control and 10 adjustable ring tones - Speakerphone in handset - 40 Name and number caller ID history - 5-line LCD display with adjustable contrast - 50 Name and number phonebook directory - Backlit keypad - Hearing aid compatible - 1 Year manufacturers warranty - CSA100