Product Name: LED Digital Clock Display Type: Digital Style: Modern Special Features: Silent Clock, Large Display, Temperature Display, Auto-Dimming, Calendar Display Dimensions: 48 x 25 x 2.5cm Power Supply: Corded Electric Age Range: Adult Room Type: Office, Garage, Living Room, Bedroom [Auto-Dimming + 10 Brightness Levels] This wall clock features a highly sensitive light sensor. You can choose between automatic brightness adjustment mode, which automatically adjusts the brightness based on ambient light levels. You can also choose fixed brightness mode, which offers 10 brightness levels. [Power Cord Powered + Battery Memory] This digital clock is powered by plugging into a USB port or a 5V 1A power adapter. Color: Black Material: ABS Package Contents: 1 * digital electronic clock set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.