Feature: 1. The plug-and-play integrated design of the product is easy to carry and not easy to lose. 2. Ergonomic design, unique curved design, will not feel sore when held for a long time. 3. The product is made of fine frosted material, comfortable to the touch, simple and elegant. 4. The simple button layout and suitable size make it easy to operate in the demonstration by just moving your thumb. 5. The plug connected to the computer is made of metal, which is more firm and reliable during the plugging and unplugging process of the product. Specification: Item Type: Page Turning PenMaterial: ABS Product Size: Approx. 10.9 x 4 x 2.5cm / 4.3 x 1.6 x 1in Battery Model: 1 x AAA battery (delivered without battery) Supported Operating System: For Win 2000/XP/Vista/Win7/Win8/Win10/OS X/Linux. Interface: USB1.1, USB2.0, USB3.0 Control Distance: Approx. 10 ~ 15meter / 32.8 ~ 49.2ft (the effective distance will vary with the environment.) . Package List: 1 x Page Turning Pen1 x User Manual Note: 1. Manual measurement, there is a slight error.2.The wireless receiver is near to the battery inside the flip pen.