1.MAGNET FREE MATERIAL BODY GS202 body is using non-magnefic material, you can rest assuredplaced in the office or room, do not have to worryabout causing the display magnetization. 2.EASY AND CONVENIENT AUDIO CONTROL FANTECH GS202 audio control at your fingertips, to controlaudio volume to reproduce any source audio perfectly. 3.USB PLUG USB powered,direct from computeror powerbank 4. 3.5mm PLUG Using the 3.5mm plug which are widely use incomputer, phone and other music player deviceUse it anywhere you wish.