Simple, corded operation, The telephone works without AC Power. For the Caller ID to function, four AA batteries (not included) are necessary, Line power mode</br>14-number speed dial, Display dial, Hold, Mute</br>Last number redial, Flash, Receiver volume control</br>Ringer volume control, Table- and wall-mountable, Hearing aid compatible</br>English/Spanish/French setup menu</br></br>Product Description</br></br>AT&T CL2909 Corded Phone, White, 1 Handset</br><br/>http://www.amazon.com/gp/product/B001S2PKPE