The operation is very , and clear.Easy to set up. Modern Design:The clock can also be used as a mirror, convenient and decorative, matches simple and sleek home design. Easy Operation Clock: Intuitive setting button, experience stress when setting the time or alarm. Easy for children, the elderly and the elderly. It can be placed in the bedroom, on the desk or anywhere you need. Intelligent voice-activated simple , voice-activated when the battery is powered only by dry battery Time memory function(available when powered by battery and plug in use at the same time)(3XAAA battery for time memory not included) color:Black Material:ABS size:160 x 25.5 x 61.5mm Package Contents: 1 x 1 x USB cable Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.