100% brand new and high qualityMaterial:ABSColor: BlackLight Style: Beam lightPower Supply: 2 x AAA battery(not including the battery)Switch: ButtonOperating System: USB interface and Microsoft Windows 2000 / XP / Win7 /VistaHave the Black screen and Launch slide showing functionThe size is confortable for the lecturer to hold and opertate perfectlyUSB receiver is plug and play - no driver requiredNo hassle setup， simply plug into your computer’s USB portPower saving， lightweight， suitable for putting in your pocket or handbagsSupports MS Word， excel， PowerPoint， ACD See， website etc， with page up and down functionSize: 11.5cm/4.53''x 3.5cm/1.38''(approx)Quantity:1PcNote: Due to the difference between different monitors， the picture may not reflect the actual color of the item. Thank you!Package includes:1Pc x Wireless Presenter Remote Control(not including the battery)