Specification: Type: Mirror Digital Clock Material: Plastic+Acrylic+Electric Component Screen size: 7.4inch Light source: LED Battery: 2032 button battery (NOT included) Interface: USB Slot + DC Power Slot Timer: 5-90 Minutes Projection distance: Max 5m Temperature arrange: 0°~50°(+/- 1°) Humidity arrange: 20%~95%(+/- 5%) FM: 76MHZ--108MHZ Package Included: 1 x Projection Alarm Clock 1 x USB cable 1 x English manual Important: Q: What should I do if this projection numbers on the ceiling is fuzzy? A: Please rotate the focus ring for proper angle to adjust it from fuzzy image to be clear as you desire. Q: How to adjust time numbers from reversed to be normal? A: please press the Projection button once again until make projection numbers to be normal. Features: Our digital alarm clock comes with a 7.4 inch mirror LED display so that you can clearly see the time. The projection alarm clock projects time on the wall in a soft red light, which you can clearly see the time but will not disturb your sleep. It is suitable for light sleepers, you can manually set the Bright-Medium-Dim 3-level brightness as well. This smart alarm clock has dual clocks, which enables you to set two separate wake-up times at the same day. The snooze button is located in a convenient central location, you can easily turn off the alarm.