Waterproof grade reaches IP65, the closed shape design has strong sealing performance. Timing dynamic indicator circle, digital display time display and circular dynamic pointer time display, countdown dynamic back second indicator circle. With temperature and humidity limit alarm function, when the upper limit is exceeded, the backlight turns red, when the lower limit is exceeded, turns orange and an alarm sounds for 5 seconds. Rotating buckle back cover is more convenient, suction cup design, so you can put it in table or hanging on the wall. Can be used as clock, thermometer, humidity meter and timer, multifunction bathroom tool. Hidden buttons, better and tighter waterproof design. Large digital display, easy to read. Item Name: Digital Shower Clock Material: ABS Waterproof: IP65 Battery: 3 x AAA Batteries (Not Included) Power Supply: Battery or USB Charging Indoor Temperature Range: 329-122 Degree Fahrenheit, 0-50 Degree Celsius, Refresh Time: 30 Seconds, Resolution: 1 Percent Indoor Humidity Range: 20 Percent~99 Percent, Refresh Time: 30 Seconds, Resolution: 1 Percent Features: Countdown Function, Multifunction, Waterproof, Temperature and Humidity Display, Suction Cup Size: 11.8cm x 10.5cm x 4.5cm/4.65" x 4.13" x 1.77" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Digital Shower Clock 1 x USB Power Cable 1 x User Manual