The Uniden 5.8 GHz Extended Range Corded/Cordless Combination with Call Waiting/Caller ID and Extra Handset & Charger. Power failure operation through corded base, 30-number Caller ID Memory, 10-number phonebook memory, Answering system access from handset, Headset compatible, Call transfer between handset and base, Trilingual voice prompts, New message LED indicator, Backlit display, Trilingual menus, View phonebook numbers during call, Dial from Caller ID, Ringer volume control, Belt clip included, Hearing aid compatible (HAC), Last number redial, Wall mountable