? 4 PROJECTION BRIGHTNESS & 2 ALARM SOUNDS ADJUSTABLE?With 4 adjustable projection brightness(0%, 10%, 60%, 100%). Projection alarm clock with two power supply modes make the alarm clock more flexible during daily use, usb port (usb cable include) or 3 pieces AAA batteries (not include). You can charge it in many devices like AC adapter, power bank or the computer) easily, which avoids drained battery while you are sleeping and wake you up and save energy. ?MULTIFUNCTION DISPLAY ?Projection alarm clock equipped with professional grade sensors, the thermometer for house provides most accurate measurements, displayed with indoor temperature, allows you to be aware if adjustments are necessary. As a lazy digital alarm clock, night light, perpetual calendar. The screen includes month, week, date, simple alarm setting, and indoor temperature (°C / °F). Perfect alarm clocks for bedrooms, keeps you and your family's living conditions optimal. ?9 MINUTES SNOOZE FUNCTION & WEEKEN MODE?Snooze button helps you to easily turn off the buzzer without opening eyes. The default Snooze time is 9 minutes. The digital clock will alarm every 9 minutes until you turn off the snooze mode by pressing any other buttons. Set the weekend mode and let the alarm clock never ring in weekend. This smart projection alarm clock wake you up comfortably. ?120°ADJUSTABLE ANGLE & ULTRA-CLEAR PROJECTION?Alarm clock with 120°adjustable projector, allows to project ultra-clear time onto ceiling or wall within the range of 7-10ft. You can turn on/off projection as you need. Long press the "Project" button to flip projection view upside down 180°. Leave the alarm clock projection on ceiling while sleeping at night, you can easily read the time while lying in the bed. ?3.8 INCH ADJUSTABLE SCREEN DISPLAY?Projection alarm clock designed with 3.8 inch LCD screen and adjustable display brightness, no stimulus no fatigue for eyes, long life for using. Digital alarm clock 4 display brightness enables you to customize the display you like. Enables you to set the display to a brighter setting in daytime and softer one at night. You can also turn off the display and leave the projection on.