?OUTLET POWERED ONLY ?The ceiling projection clock can only work with power connected. It can be connected with USB cable or AC adapter(Not included). 150cm long USB cable is including the packing. ?Dual Alarms + Raised snooze button?Mirror projection alarm clock have dual alarms to satisfy your different daily needs. The snooze button has a raised point to ensure easily stop the alarm rings. 5-60 minutes snooze time setting for your choice. 12/24 H display switchable. ?LED display with 3-Level Brightness?During daytime, you can shut off the projection function letting LED Screen display works alone. Projection clocks have 3 levels brightness adjustable to suitable different surrounding lighting. ?2- Level Projection Brightness?This clock projection have 2- level projection brightness to protects your eyes from too bright and reduced the effect from light whilst people are sleeping at night. ?180°Projection Alarm Clock?The projector clock support 180°adjustable ensure you can read the timing easily and clearly from the wall or ceiling when you sit down or lay on bed. Long press the “Project” button to flip projection view backwards or upside down to make sure you can see the correct time in any angle. The best viewing distance is 3-5 Meters.