This alarm clock is made of plastic material, which can withstand use. Features the safe material, which has high durability, alarm clock is not easy to deform. Fine workmanship, ensures alarm clock practicality. Features -Color:Green -Material:Plastic -Size:16.60X4.70X2.50cm/6.52X1.85X0.98in -Power supply: 1pc AAA battery(not included) -Note: The USB cable is only compatible for 5V/1A and 5V/2A adapters. - Large high definition digital display silent with time, alarm clock and temperature display functions. - Electronic clock with large display screen is the best gift for your family, and they will like this clock. - Full high-definition display, easy to operate design, this clock is decorative and delicate. - This alarm clock is applicable to a variety of scenes, such as bedrooms, office, school etc. - Manufactured with professional technology to ensure the alarm clock can work for a long time. Package list: 4 x clock 4 x USB cable 4 x specification