Wireless Presenter with finger ring design, the ring adjustable to fit finger sizes. The control area with buttons can be controlled simply by your thumb, supporting both hands for comfortable control all day long. A red and bright laser pointer that's easy to see against most backgrounds, highlight key areas of your slides, super easy to use to keep your eyes on your audience. Equipped with top-grade wireless technology, control range up to 12 meters, so you can move freely around the room and interact with your audience. The mini USB receiver supports plug and play technology. No driver is required. Built-in docking bay stores receiver magnetically so you are less likely to lose your receiver. One-touch keys for easy slideshow control. Buttons: laser pointer, page up, page down, launch slideshow, black screen, switch on/off. Built-in rechargeable lithium-polymer battery. You can charge it by a laptop or wall adapter via the standard micro-USB input port. Comes with standby and deep sleep functions for energy-saving and durable use, equipped with a separate switch that effectively avoids unwanted power consumption when you put it in your bag. Supports: Word, Excel, PowerPoint, ACD See, website, Keynote, Numbers, Google Slides, Prezi, etc. Supported OS: Win2000, XP, Vista, Win7, Win8, Win10, macOS, Linux. Color: black. Material: PC. Package Contents: 1 x Wireless Presenter, 1 x Receiver, 1 x USB Cable, 1 x Portable Bag. Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the image to be a little different from the real thing. The measurement allowed error is +/- 1-3 cm.