... Calendar and Alarm Clock SpecificationsMain function: LED desk lamp Color: white Case material: PCB Clock battery: CR2025, 3V Battery ... capacity: 1000mAh Working time: 10 hours Functions: book lamp, thermometer, calendar, clock, alarm Port: mini USB for charging Segment ... dimensions: 185 x 42 x 7 (mm)Package Contents1*Desk lamp 1*Mount with sticky tape 1*USB cable for charging ...