As time passes, the film rotates and the colored areas fade, allowing you to visually experience the passage of time. Color: Mint Blue
Material: ABS
Power supply: 2 AAA batteries (included for testing)
Electronic alarm duration: (minimum) 3 seconds, (maximum) 60 seconds (2-step adjustment)
Volume: (min) approx. 55dB, (max) approx. 65dB (2 levels)
Settable time: up to 60 minutes
