Features: It can be used in most parts of the world with FM76~108 band radio. Fine quality loudspeaker, professional amplifier circuit design, perfect release of sound. It can store 15 radio channels. The volume can be adjusted from 0 to 10. Double alarm clock setting, can set tick sound and radio alarm mode. Four-level display brightness adjustment, light-sensitive non-polar dimming. Optimal projection distance 3 meters, no need to manually adjust the focal length. Projection brightness two-level adjustment, 180-degree display direction adjustment. Shutdown memory function: built-in 2032 button-battery, after shutdown, continue to run in the background to retain the time of external power, no need to repeatedly adjust the time. Specifications: Item type: Clock Color: White, red, blue, green(optional) Screen display: 8inch Power-supply-mode: 5V USB line DC power-supply (Note: conventional packaging does not include adapters) Time Format: 12/24 Hour Switchable Adjustable brightness: 3-level brightness Dual alarms setting Package weight: 330g/11.6ounces Package size: 205*110*60mm/8.07*4.33*2.36inches Package List: 1 * Clock 1 * USB cable 1 * User manual