s: 1. -speed brightness adjustment: lightly press the top button to adjust the brightness2. Automatic adjustment of the brightness and eye protection function: turn on the automatic half-bright mode, and the brightness will automatically dim from 18:00-5:59 every day, but it is only an automatic variable interval.3. LED time projection: the projection is clear and the projection angle can be adjusted; press the projection key to turn on or off;4. Snooze function: press the button after ringing, it will ring again after 5 minutesProduct name: LCD projection electronic clockProduct model: DS-3618LPProduct net weight: 148.4GType: BFunctions: clock function, period function, alarm function, temperature function, automatic half-bright function, LCD projection clock function ur: shell white wordMaterial: Size: 18.5 x 9.5 x 4.2cmPackage Contents:1 x projection alarm clock1 x usb cable the above package content, products are not included.Note: shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.