Powered by the telephone line, no AC power needed. Caller ID/call waiting capability with local subscription. 50 name/number caller ID history, (requires 4 AA batteries, not included). English/Spanish/French setup menu. 13 number memory. Ringer and handset volume control, mute, flash and redial. 2.5 in W x 8.27 in D x 2.99 in H. Weighs 0.5 lb. Table/wall mountable. In a gift box.