The projector can be rotated 160 degrees and projects the time onto the wall or ceiling within the optimal projection distance (0.5-3 m). To further improve the clarity of the projection image, you can rotate the ceiling light's focus ring to the desired angle. Press the PROJECTION MODE button to reverse the direction of the inverted projection images. Multifunctional: With the alarm clock, you can set two separate alarm times for yourself and your partner. The snooze button is easily accessible to temporarily turn off the alarm and get 9 minutes of extra sleep. The alarm volume (level 1-5) can be adjusted to your preferences, and the alarm sound gradually increases so you don't wake up abruptly. The large display on the ceiling projection alarm clock makes it easy to see the time from anywhere in the room, even when you take off your glasses, perfect for the elderly. You can dim the LED indicator by repeatedly pressing the \"DIMMER\" button. Press the \"DST\" button on top of the ceiling light to activate the DST function. USB device installation and battery protection: Simply plug it into a wall outlet and you're done. The USB output is very convenient for charging Android and iOS phones and tablets. All functions require mains power and two AAA batteries for time and alarm setting, which you don't need to reset in case of a power outage. Easy to use and includes accessories: With simple and intuitive control buttons, the alarm clock is easy to set up, even for young or old people unfamiliar with digital devices. Compact and stylish clock for the bedroom, office and kitchen. Perfect gift for friends, family and loved ones.