This shower timer helps reduce costs by encouraging shorter showers. Saving hot water means saving energy used to heat it, which can lower your water and energy bills. Simply place the waterproof timer in the shower, set your desired time, and press START. The countdown displays clearly, and an alarm sounds when time is up. It can also be used as a kitchen timer or in other areas of your home. Size: 5.9 x 7.5 x 1.6 cm / 2.32 x 2.95 x 0.63 inches Material: ABS Battery: 1 AAA (battery not included) Mounting options: Hanging or suction cup attachment Functions: Set timers for lunch breaks, study sessions, beauty routines, exercise, meetings, cooking, and more. Provides timely reminders. Usage locations: Kitchen, office, study room, classroom, travel, fitness activities, and more Package includes: 1 digital shower timer