LEDs digital display: time, humidity and temperature can be easy to reading.Projection function: project time, adjustable focus, 3-level projection brightness, can rotate the projection 180.Automatically light-adjusting:in this mode,the projection brightness can't adjust automatically according to inddor brightness. radio function: manual , the listenning time can be set, automatic search station. function: 2 alarm clocks can be set to any time separately, also set snooze mode.Indoor thermometer function: real-time temperature display, 12H/24H modes.4 levels of display brightness can be manually adjusted as you need.The screen is special progressed which can be used as a makeup mirror.-in powers off memory function.USB Input: DC 5V Frequency: 87.5-108 MHzProjection Distance: 0.5-5mVolume Adjustment: 0-15 levelsHour : 12H/ 24HBrightness Adjustment: 4 levelsBatteries: 1*CR2032 (included) / DC 5Vshell Colour:blackCharacter Colour:Whitetype: BMaterial:ABSSize:183 x 75 x 95mmPackage Contents:1 x projection 1 x usb cableOnly the above package content, other products are not included.Note: Light reflection 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.