Splash-proof clock that can be used in the bathroom. You can check the bathroom temperature with - thermometer. With timer and count-up function, it is convenient to notify the time when the bath is boiling. Waterproof performance: Equivalent to IPX4 (waterproof protection class 4) - Not completely waterproof Power supply: Button battery (CR2032) - 1 piece (included) With calendar, thermometer and timer;Dimensions: H3.3x;W10.8x;L6.5cms;Do not subject to strong vibration or impact, do not use in places with high temperature and high humidity, do not disassemble or modify. Do not use benzine, thinner, alcohol, or spray cleaner to clean the case.