The Panasonic KX-TG5776S 5.8GHz Cordless Phone is an expandable 5.8 GHz FHSS GigaRange Digital answering system. This system features a full color display, and is expandable up to 8 handsets in total. The 5.8GHz technology delivers cordless convenience & the integrated digital answering system records up to 60 minutes of message time. Talking Caller ID incorporates true text-to-speech technology to actually tell you who's on the line. A convenient USB port allows you to easily download pictures, ringtones, wallpapers, and more! 2-Digit LCD call counter on base Voice menu with time/day stamp. Memo record Remote control from handset or outside line Customized Ringer Call Waiting Caller ID (subscription required) Talking Caller ID Ringer ID Light-Up ID Picture ID Icon operation Light-up indicator with Ringer/Message Alert USB port Voice Enhancer Technology Color - Silver Replacement Battery - HHR-P104 Measurements - 1-5/8 x 2-1/4 x 9