1Compact, convenient and powerful, in addition to the basic keys for PPT presentations, it also has an wireless mouse function, screen touch function, and a microphone voice function. 2One-button operation, long-distance control, providing high-quality operation experience 3Ergonomic design can provide comfortable feel 4Wide compatibility, suitable for mainstream computer operating systems on the market 5Plug and play, no driver installation required 6Common functions such as page turning, laser instruction and full screen, etc.Item Type:Flip PenSupport Systems: for Windows, for android, for linux Carrier Frequency: 2.420GHz-2.483GHz Effective Distance: Wireless Mouse> 8 Meters, voice> 4 Meters Transmission Distance: >10 Meters Power: 200mA Current: 25mAOptional Color: Black, Silver1 X Flip Pen1 X Charging Cable1 X User Manual1 X Touch Head