General description This waterproof clock is perfect for monitoring time in the bathroom or kitchen, helping you manage your schedule effectively to avoid being late for school, work, or appointments. Its cute design also makes it a charming decorative piece for any environment. Technical specifications Color: Black Diameter: Approx. 7 cm / 2.76 inches Power Supply: 1 x AAA Battery (Not Included) Measurement allowed error: +/- 1-3 cm Compatibility and accessories Package Includes: 3 x Waterproof Shower Clock Installation Can be easily attached to smooth and dry surfaces such as bathroom walls, mirrors, glass, and metal using a large and strong suction cup.