Mini wireless keyboard with trackball mouse 77 keys keyboard Multi-language supporting Multi-touch QWERTY keyboard RF-2.4G Mini Wireless Keyboard With Trackball Mouse Features:Features:This 2.4G Mini Wireless Keyboard & Mouse & Trackball & Laser Pointer Combo have 77 keys ,built-in lithium-ion batteries support 2,000 hours of standby time, is a fantastic tool for your mobile phones, tablet PCs ...