[ALARM CLOCK WITH PROJECTION ON CEILING]This projection clock offers ultra-clear views of time on your ceiling/wall with adjustable 120°swivel projector, rotating focus ring at the appropriate distance 1.6-10ft to get the fine and smooth time figure image. Easy to grasp the time while in your bed without touching anything.[ADJUSTABLE PROJECTION]We have options to rotate projection orientation, the 180°swivel projector. Tap the projection mark on the top of the projector clock, we can turn on the function as well as adjust the projection brightness when powering from the USB power cable.[LARGE LCD SCREEN & 4-LEVEL BRIGHTNESS]This projector alarm clock thermometer is designed perfectly with 4 dimming levels including HIGH, MEDIUM, LOW, and OFF, you can dimming according to different light condition for comfort and clear readings of time, date, temperature and humidity. Note: The brightness adjustment function is only available when connected to a power source. If the alarm clock is only powered by batteries, four-level dimming cannot be achieved. If you want to experience all functions, we recommended that you plug in to use this projection alarm clock.[2 VOLUME SETTINGS & SNOOZE FUNCTION]Two types of alarms, high and low, perfect for heavy sleepers. The ceiling clock will be ringing for 3 minutes, and The Snooze Function will temporarily stop the alarm and will sound again after 9 minutes.[USB & BATTERY POWERED]This projection clock has two power supply modes, 3*AAA battery (not included) or via 5V micro USB cable. In USB powered mode, you can also insert batteries as backup power supply to keep setting. If you turn on the projection function in battery-only mode, the projection will turn off after 10 seconds and will not last continuously. Connect the micro USB cord to the projection alarm clock current for permanent projection and display illuminated. If you want to experience all functions, we recommended that you plug in to use this projection alarm clock.[WEEKEND MODE]This projection alarm clock has a weekend mode, when you schedule the alarm and turn the Weekend mode on, the alarm will only ring from Monday to Friday, and will not ring on weekends. Save you the hassle of turning on/off the alarm before or after weekends. Product Description USB Powered When the clock is powered by 3 x AAA batteries (Not included) for operation, the projection brightness will turn off after 10s. You can use the USB cable powered to better use all functions Rotatable Angle This projection clock can adjust the angle range at will to meet any occasion Weekend Mode If you want to sleep in on weekends, you can set the weekend mode so that the alarm clock will not ring 9 Mins Snooze The big snooze button on the top of the alarm clock will give you a non-stress oversleep experience and catch an extra shuteye. After 9 minutes it will ring again, no worries to be late. Warm Tips : When the clock is powered by 3 x AAA batteries (Not included) for operation, the projection brightness will turn off after 10 seconds, also does not support screen brightness adjustment. In order to allow you to better use all the functions of the clock, we recommend that you use a USB cable power supply.