Large lighted keypad and 9 photo memory buttons for speed-dialing, it is convenient for dazed seniors to dail and memory the phone numbers.           Adjustable amplifier allows incoming volume up to 5o db(25-35 db higher than average).           Super bright LED ringer light.           Super loud ringer with adjustable volume up to 95.           Adjustable tone control. It can enhance the clairty of the incoming sound and distinguish similar-sounding words. Indicators for amplify, hold, voice mail waiting and speakerphone.           3 programmable emergency buttons for police, fire & EMS . Compatible handset with hearing aids, it helps the seniors or hearing loss users listen clearly. 3.5mm audio jack for assistive-listening device.