* Clarity-W1100 Clarity Walker Clarity W1100 Extra Amp. * Clarity amplified corded telephone. * Clarity technology makes words louder AND clearer (can be turned on/off). * Extra loud ringer. * Bright visual ring indicator. * Clarity control slide bar (adjusts amplification level of high frequency sounds). * Hearing aid compatible. * Failsafe power failure operation (maintains 25dB of frequency amplification when electrical power goes out, without the use of batteries). * Incoming sound can be increased up to 33dB. * Customizable ringer (volume and frequency adjustable). * One touch emergency help button. * 10 Memory keys (for numbers up to 32 digits). * Redial/hold/flash/mute. * White with large black buttons. * Wall mountable. * 3.5mm jack for assistive listening devices.