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, highlighting key areas of your slides, super easy to use without taking your eyes off your audience. Equipped with top-grade wireless technology, control range up to 12 meters, so you can freely move 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 it. One-touch keys for easy slideshow control. Buttons: laser pointer, page up, page down, launch slideshow, black screen, power on/off. Built-in rechargeable lithium-polymer battery. You can charge it via a laptop or wall adapter using 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 stored in a bag. Compatibility: Supports Word, Excel, PowerPoint, ACD See, web browsers, Keynote, Numbers, Google Slides, Prezi, etc. Supported OS: Windows 2000, XP, Vista, Windows 7, 8, 10, macOS, Linux. Color: Black Material: PC Package Contents: 1 × Wireless Presenter 1 × Receiver 1 × USB Cable 1 × Portable Bag Only the above items are included; other products are not included. Note: Lighting and different displays may cause slight color variation between the image and the actual item. Measurement tolerance is ±1–3 cm.