Size:245*42*15mm it's convenient for low vision and old people and blind people . it can read time 1.Time2.Alarm(with several alarm sound for the choice)3.Hourly chime4.Snooze5.Talking time with many different versions,for example Chinese,English,Russian,French,Spanish,Japanese,Korean,etc.6.Battery:2XLR1130 black electronic E-blind table