Powerful or SoundThe extended 18m wired bed shaker is long enough to be put under pillow or mattress It is specially designed for heavy sleepers hard of hearing or deaf people who have trouble waking up in the morning with a traditional sound alarm clock to only shake them up without waking spouse roommate or kids Buzzer sound is an essential option to meet all your preference 180 Adjustable Projector Angle Focus Dial Flipable ProjectionThe sleek 180degree with focus control ring provides a clear view of the time and adjustable angle with reverse button to meet any occasions The optimum projection distance is 4998ft Project ultraclear time onto your walls or ceiling 7 LED Display with DimmerThe screen of the is large and you can read it from the other side of the room even for shortsighted and elders This alarm clock is designed perfectly with 3 dimming levelsthe dimmest wont disturb your sleep in any way Just press DIMMER button to eliminate extra light in the room SnoozeUSB charging port is compatible with all Android IOS smartphones tablets Kindle or any other digital devices The snooze button is the best design for those struggling every morning to get out of bed Battery Backup SettingThe is outlet powered for supporting functions such as USB charging vibrator projection alarm and time display Two AAA 15V batteriesnot included are required to ensure memorization of time settings so that you dont need to reset time after encountering power outage DST 1224HHole press DST button on top of the to activate Daylight Saving Time function and add a hour on digits display And long press 1224 H button to change time format