1, 2.4G wireless keyboard and mouse 2, Our new and best sellers 3, products compatible with all Windows systems Keyboard:key switch: membrane keyswitch with tactile feedbackkeycaps type: printingKeys:   104 +12hot keybs available, waterproofLanguage: Multi-language versionsKey stroke life: Keyboard-10 million timesBattery needs: 2*AAAMouse:800/1600 DPIHuman engineering designWith Mini Nano ReceiverBattery needs: 2*AAAButtons life: 3 million timesMaterials: ABS plastic10M availableBlack, Silver & black availableOS: Compatible with Windows 95/98/NT/ME/2000/XP/vista 

New Wireless Keyboard and Mouse