[ Plug and Play ] - Mini-receiver, No need to install drivers,saving computer USB space, integrated design, easy to carry.Low battery intelligent reminder, when the battery is too low, the blue indicator light flashes to remind you to charge in timeBuilt-in 200mAh capacity lithium battery, which can be fully in 1.5 hoursSurface ergonomic design, comfortable grip, frosted texture, raised button design, can operate freely without looking down, and the presentation is smootherThe USB receiver is compatible with USB1.0, USB2.0, USB3.0, just plug in and operateColour:blackMaterial:ABS Size: 13 x 2 x 1.3cmPackage Contents:1 * Wireless PresenterOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.