Speaks time in a clear natural English male voice Large speaker ensures good quality sound Function buttons are located on base to prevent accidental change Allows user a choice of alarm sounds and settings Volume control gives the user control Time announced in 12-hour format Communiclock height: 90mm (3.54") Communiclock width: 80mm (3.15") Communiclock depth: 97mm (3.82") Communiclock weight: 600 gms (1.3 lbs)