1. Page turning pen: The 300-meter ultra-long control distance is ideal for presentations in conference rooms. It allows free movement around the room and real-time PPT control. 2. Green laser pointer: 10 times brighter than red, suitable for all presentation screens. Provides clear visibility even in well-lit environments for more effective presentations. 3. Built-in LCD screen displays time, timer, and silent vibration reminder to help manage presentation duration without constantly checking the clock. Powered by a 1000 mAh rechargeable lithium battery for extended operation. 4. Mini USB receiver supports plug-and-play functionality—no drivers required. Simply plug into the computer to begin presenting immediately. 5. Supports page up, page down, full screen, black screen, and hyperlink functions. Compatible with most presentation software and operating systems including Windows 2003, XP, Vista, 7, 8, macOS, Linux, and Android. Safety Warning: 1. This 433 MHz transmitter is not a toy. Never point it at human eyes or aircraft. 2. This device is intended for adult use only. 3. It is illegal to aim this device at any flying objects, moving vehicles, or public or private buildings. 4. Do not point the device at people or animals. 5. Improper use may result in serious injury or hazards. Color: Black Material: Plastic Package Contents: 1 x Wireless PowerPoint Remote, 1 x USB Receiver Note: The actual product color may vary slightly due to lighting conditions and screen settings. Measurement tolerance: ±1–3 cm.