Feature: Quantity: 1pcs Material: ABS Color: Black Product size: 16x6x2.5cm/6.29x2.36x0.98in Packing size: 16.8x7.2x4cm /6.61x2.83x1.57in Gross weight: 159g/0.43lb Brightness control: 6level Volume control: 6level Hour conversion: 12 hours /24 hours Power source: USB Corded Electric/ 3*AAA Battery Powered Description: 【Ultra-Clear Big Display With Auto Brightness Dimming】- Our digital alarm clock has large LED display makes your life easy and convenient， you can clearly see the time from multi-angle far across bedroom living room kitchen， what's more， you can enjoy a better visual experience with the auto-brightness dimming (darkens at night). You can adjust the 2 brightness level manually as what you like. 【Multi-function Clocks & Big Snooze】- This is a smart desk clock and it has temperature °C/°F， 12H & 24H， date mode， the snooze function of this LED clock gives you extra sleep (1-60 minutes optional) before alerting you again. 【Minimalism Ultra-narrow Design & Easy Operation】- Fashion compact streamline design yet large number display， is easy to see even for impaired vision people， intuitive setting button， experience no pressure when setting the time or alarm. 【USB Plug In or Battery Powered】- Outlet powered is required for all functions working， if you using 3pcs AAA batteries(no included) ， the display can be voice-activated and automatically turned off the screen digital 16 seconds. 【Please Note 】- If you use the battery without USB Corded Electric， the clock screen will not stay on Package Content: 1 x Digital clock 1 x USB Power Cord 1 x Manual