1. Products need to use a section AA (5) batteries.
2. The second hand ball (metallic silver) release the innermost track, can be adsorbed at an arbitrary position.
3. Hour ball (blue) and the minute hand ball (red) are placed in the middle of the track and the outermost track,
Need to find a fixed position!
4. Open the back cover, turn the adjusting knob to set the exact time.