Item Type: LED Digital Wall Clock Material: Aluminum Alloy + Plastic Size: Approx. 20 x 20cm / 7.87 x 7.87in Voltage: 100-240V Battery parameters: CR2032 button battery, 210mAh (built in) Power supply: Plug in use Function: Plug and play, power off memory, precise timing, luminous mute, clear display Scope of application: living room, bedroom, study, office, kitchen, school, public places Weight: Approx. 625g / 22.0oz Package List 1 x Wall Clock 1 x Power Adapter 1 x English Manual 1Use Scenario: Digital wall clock is suitable for study rooms, restaurants, offices, meeting rooms, computer rooms, laboratories, schools, and hotel front desks. 2Elegant Appearance: Black frame, generous, elegant, no longer waste time and effort to replace the battery plug in use, once and for all. 3Big Digital Display: Big digital display for hours, minutes and seconds, week temperature display, time using digital tube display, easy to view. 4Double Hanging Design: A variety of hanging holes, double hanging design, safe and stable, not easy to fall, can also be used on the desk. 5Aluminum Alloy Material: Digital wall clock is made of high quality aluminum alloy and plastic material, which is anti corrosion and anti rust.