Detailed Product Description INDOOR LED DISPLAY SCREEN,LED DESK DISPLAY,Led Desk Screen Composing partsUSB cord with two functions that is ... Action: Rotate, Snow, Flash, hold, Twinkle5 Speeds4 Classess Brightness, 25%, 50%, 75%, 100%, Adjust by KeyLarge capability Poly-Lion ... USB interface for charge and communicationThe keys function of LED Digital Board Switch On/Off your badgeFirstly, make sure ...