EASY INSTALLATION: This clock features a unique suction cup design that can be firmly fixed to any smooth without drilling, making installation quick and easy. Perfect for bathrooms, kitchens, or any other room where a reliable timer is needed. (1 x AA battery powered, not included) installation methods: The bathroom alarm clock has a built-in hole on the back to hang it . It has a suction cup and is mounted on a clean, dry, smooth . . This shower clock is IP4 waterproof, making it perfect for use in the bathroom or shower (do not place in water). Bathroom wall clocks are splash and moisture resistant, making them perfect for ensuring you don't have to take long showers and save water. BEING MADE SIMPLE: With this easy-to-read, always-on watch, you'll never have to worry about losing track of time while ready for the day or cooking a meal. It's your perfect time management companion so you're always . color:Black Material: aluminum + plastic Package Contents: 1 x Alarm clock Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.