Model Number:Alarm Clock Theme:Cartoon Anime Movie TV Cartoon Anime characters Pattern printing: Harry Potter Style:LED Color Changing Clock ,7 color changes ,Christmas gift decoration Age Range: kids,adult ,boys ,girls ,man ,women Gender:Unisex Size: 8 * 8 * 8 cm 1cm=0.39inch Material: plastic Design: as picture The time function: alarm clocks Display function: large LCD digital display, can display year, month, day, time, week Press the top of the alarmclock,the alarmclock will light up for seconds! LCD screen powered by 2x AG13 batteries . (included) Alarm Clock LED light Worked by USB DC2.5 Adater or 4 x AAA batteries .(not included) size 0 is USB DC2.5 Adater Length: about 70CM Interface: USB transfer DC2.5 (outside diameter) * 1.0MM (diameter). Introduction: via computer USB jack to power other devices. Such as: alarm clocks mp3, mp4, speakers, Bluetooth, etc.