... adjustment, 8 informations for option.* 8 grade of moving speed, a variety of display modes for option.* Easy to input your ... Bightness, Message Selsction* A-brightness for 25%, 50% , 75%, 100%;B-Change message button* Charging time: 2-3 hours, Charging voltage ... show yourself* Exhibition* Retail sales price* OthersShowing effects:Packing: usb small led display - Red/Blue/White/Yellow/Green color -usb ...