60 dB Amplification with an Interface for Optional Alerting Accessories This best-selling favorite, now features Digital Clarity Power™ technology. With up to 60 decibels of amplification, four position tone control, and large reverse-contrast buttons, the XL50™ is ideal for those with a moderate to severe hearing loss and low vision. Features a lighted keypad for easy dialing. Has an output jack for neckloop or cochlear implant cord, 11 memory buttons for one-touch dialing. Ringer volume is adjustable and red bar at the front of the phone flashes on ring. Voice mail and missed call indicators. Has an interface port for optional alerting accessories. Add a bedshaker or remote lamp flasher for additional signaling. (sold below). Hearing aid compatible. Battery backup. One year warranty.