... 3. used in the dark A:Specification and features:1, laptop keyboard USB light, no extra electricity,convenient to use2, Use in ... to clamp on the screen and it wont scratch your laptop surface.suitable for various laptops4, Patented product, fashionable and elegant ... , suitable to use everywhere5, Unique design, exclusive outlook6, USB 2.0 and 75cm cable, convenient and durable B:Outside ...