Presentation Pen

Description: keyboard net weight 30g (including receiver) product gross weight 130g product size 13.5 * 2.0 * 1.9cm color box size 15.5 * 7.8 * 3.7cm remote control distance of 20 meters a range of 200 meters colour: black battery 1 * aaa battery material abs system support: windows 98/2000 / xp / vista / win18 / linux / mac os features: 2.4g radio frequency technology, free to master plug and play: no need to install other programs and can be used immediately environmentally friendly dry battery design, easy to replace exquisite small, easy to carry function: laser indication, up and down page, full screen black screen, with switch package included: 1x laser pen