USB Powered Digital Alarm Clock 180 Arm Projection Alarm Clock Time Temperature Snooze Table Clock 12/24H Projector LED Clock Function 1.12/24H Switching 2. Time, alarm, snooze, backlight, projection, temperature 3. Always on when DV5V is connected 4. Brightness adjustment: Screen: high-medium-low-OFF Projection: highlight-medium-bright-OFF 5. LCD projection function: you can press the projection key to turn on or off. Only Projection arm can be rotated 180 Projection time can not be rotated 180 If projection arm rotated 180the projection time will be upside down 6. Night Mode Automatic semi-bright function: 18:00-5:59 brightness automatically dims if night mode is on 7. Mirror effect Applicable scenarios: office, bedroom, study room, living room, etc. Power supply: 1.1PCSCR2032 button battery (not included)-memory time 2.1PCSDC 5V line (included)-in-line power supply Product Show Size: 18.5x9.7x4.5cm/7.28x3.82x1.77inch Color:As picture show Package: 1xProjection Alarm Clock 1xUSB Cable 1xProduct Manual Warm Tips 1.It has to USB plug-in use,can not be powered by CR2032 battery(Plug and Battery Not Included) 2.CR2032 Battery(Not Included) only for power-off memory,no need to set time again when power cut 3.Only Projection arm can be rotated 180 Projection time can not be rotated 180 If projection arm rotated 180the projection time will be upside down _x000D_