Size:245*42*15mm it's convenient for low vision and old people and blind poeple it can read the 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 reading black E-blind plastic table