1. Large screen, 3 buttons adjustment, easy to operate
2. Removable shell
3. Adjustable support bracket
4. Sliding battery cover, easy to remove and replace
5. Power: contains 1 AG10 button battery
6. Functions: hour/minute/second/date/week display, full-time chime, alarm clock, snooze, stopwatch function
7. Size: about 7.4 x 4.6 x 2.8cm