Digital Alarm Clock:- The smart night light digital alarm clock measures 145x88x55mm, small and light. It is an easy cordless battery operated alarm clock, features large clear display, smart low night light, 12-hour / 24-hour, indoor temperature, easy for kids, teens to use, basic bedroom bedside table desk gift alarm clock. Powerful LCD display:- Large numbers, 85dB loud alarm, it clearly shows the time, date, month and indoor temperature. The buttons on the back are very clear and self explanatory so it's very easy to do. 12/24 hour format and F / C unit can be switched. Note: Only one alarm can be set. The temperature show you room temp rather than general weather. Smart Light Sensor:- The digital clock features a built-in ambient optically controlled liquid crystal device,LCD backlight turns on automaticaly when the room or circumstance becomes very dark (Notice: This function must turn on the sensor button to work). Easy Clock Functions:- Intuitive setting button, experience zero stress when setting the time or alarm. Easy for kids, seniors and the elderly. It can be placed in bedroom, on desk or any places you need. The Digital alarm clock is powered by 3AAA batteries (NOT INCLUDED). No cord needed.