hito 6.8&rdquo;Large Waterproof Bathroom Shower Clock Wall Silver Aluminum Date Day Indoor Temperature Suction Cup and Stand (Aluminum finish) WATERPROOF: Waterproof shower clock works well in bathroom. EASY TO READ: Clock size: 6.8 x 6.8 x 3 inches like a wall clock. Weight: 380g. BATTERY OPERATED: This shower clock works with one AA battery (not included). INDOOR TEMPERATURE: The bathroom clock also displays indoor temperature(Fahrenheit/ Celsius). SIT, HANG OR STICK IT: The clock comes with suction cups, hanging hole and stand. We strongly suggest that you stick the clock to mirror, rather than to the wall, due to the fact that the clock is rather big and heavy.