... USB2.0 hub 4)Standard keyboard Multi-function mini bluetooth keyboard 1)Multi-function keyboard 2)Computer keyboard ... time is shorter, use a longer time.-One-one wireless wireless laser pen laser pen, electronic pointer, electronic pointerKeyboard, ... 59 × 12.5mm, only slightly larger than a smart phone, very portable.Product Specifications Product SpecificationsSystem SupportWindows 2000Windows ...