Feature: 1. Multi Channel: With 12h or 24h switch, alarm, temperature, calendar and automatic dimming function, can adjust the brightness according to the surrounding environment. 2. Wall Mounted: With a wall mounted hole, can be supported on the wall and comes with a large 3D LED digital display, making the time at a glance. 3. Removable Base: This 3D digital alarm clock has a removable base, convenient to install, can be a great decor in the bedroom, living room, office, hotel, etc. 4. Dual Adjustment Mode: The brightness can be set manually or automatically. The clock will light up at night when the automatic adjustment function is turned on. 5. USB Charging: This LED clock needs to be plugged in, powered by a standard AC outlet and can be plugged into computers, power banks, wall outlets, etc. The built in button battery cannot support the digital clock to light up. How to Use: Place the battery, connect the USB cable, adjust the time, you can use normally. Please refer to the specification for details. Specification: Item Type: 3D LED Digital Alarm Clock Material: ABS Weight: Approx. 228g/8.0oz Color: White Product Size: Approx. 230x93x17mm/9.1x3.7x0.7in Power Supply Battery: 1 CR2032 button battery (not included) (Battery is used for memory function, the actual work still needs to use USB 5V plug in) Word Light: White light word Function: Display time, date, temperature, alarm clock, automatic brightness dimming Package List: 1 x 3D LED Digital Alarm Clock1 x USB Cable 1 x SpecificationUSB Charging: This LED clock needs to be plugged in, powered by a standard AC outlet and can be plugged into computers, power banks, wall outlets, etc. The built in button battery cannot support the digital clock to light up. Dual Adjustment Mode: The brightness can be set manually or automatically. The clock will light up at night when the automatic adjustment function is turned on. Removable Base: This 3D digital alarm clock has a removable base, convenient to install, can be a great decor in the bedroom, living room, office, hotel, etc. Wall Mounted: With a wall mounted hole, can be supported on the wall and comes with a large 3D LED digital display, making the time at a glance. Multi Channel: With 12h or 24h switch, alarm, temperature, calendar and automatic dimming function, can adjust the brightness according to the surrounding environment.