GREAT FOR SHOWERS - The Water Resistant Sonnet Shower Clock will help you keep track of time while you take your morning shower..EASY TO SEE - The Sonnet Bathroom Clock has a large 4.5" Diameter LCD Display makes it easy to read the time from anywhere. The (Time is 1.5" high). Shows the Time (24/12hr), Date (Datum: Day/Month), Day of the Week (Tag) and Temperature (F/C).EASY TO USE - The Sonnet Waterproof Clock for Shower has many different uses 1) Use the suction cups to mount in the shower (works best on glass shower door or flat non textured surface), or on a bathroom mirror. 2) Use the table stand for your kitchen countertop or desk, or 3) mount on the wall above your bath using the hanging hole..EASY TO SET - You can easily set the time and date and temperature using the SET button (Atomic signal must be off to set time manually). The time can also be set automatically using the Atomic Radio Controlled signal. (Please note: due to external factors such as your location or surroundings, the Atomic signal may not work)..BATTERY OPERATED - The Water Proof Sonnet Suction Cup clock is Battery Operated and uses a single AA Battery (Not Included).ACCURATE TIME - This Shower Clock uses Atomic Time and is always split second accurate and sets itself automatically from radio signal broadcast from the National Time Observatory in Colorado.