Features: Surfaces ergonomic designed, comfortable grip, matte-treatment process, push-type physical button has raised designing, which can be operated freely without looking down, and the presentation is smoother. Adopts 2.4G wireless transmission module, low power consumption, strong performances, 100m remote control distance. Plug and use, no need to install driver, easy and convenient to use. 360 free remote control demonstratio, widely for various public class occasions, office teaching, and accurate control makes the speech more calm and confident Suitable for Window XP 7 8 10, for Android iOS 10.1 and under operating systems, great for office series page turning format files. Package Includes: 1x Page Turning Pen Specifications: Material: ABS Color: Black, White, Pink Red(optional) Remote Control Distance: 100m/328ft Battery: Powered By 1xAAA Battery (without Battery) note: Please allow 0-1cm error due to manual measurement, make sure you do not mind before you order. Please allow for slight color differences due to different monitor resolutions.