Model Number:Rosilesinf30zgwum4 Product Dimensions:15 x 9 x 6 cm; 180 Grams Material:Plastic Item Weight:180 g Specifications: Condition: 100% brand new and high quality Power: 3 x AAA batteries (not included) Shell material: plastic Size: approx. 130 x 72 x 44 mm. Type: Alarm Clock Package includes: 1 x LED digital alarm clock. Note: The colour may vary slightly on different monitors. Besides, please allow some errors in manual measurement, thank you for your understanding. About this item Night use: the watch screen automatically lights up to facilitate night vision pleasure. Energy Saving FunctionLarge LCD display, easy to read numbers and save energy. Can be timedTiming function, perpetual calendar and 24 hours/12 hour transition function. Auto On/OffIntelligent white backlight, built-in sensor to automatically turn the backlight on and off. Adapt to the scene: suitable for car, desk, home. Night use Energy Saving Function Can be timed Auto On/Off Adapt to the scene