Wireless Design: The PPT presenter has wireless design, no need to worry about wire problems when using, more convenient and freely, you can be more focused on the content you want to deliver. Multiple Functions: The wireless presenter offers multiple functions, serving as an infrared electronic pen, PPT controller, computer volume controller, and more, providing versatility and compatibility. Portable and Lightweight: The remote control has compact and lightweight design, easy to carry and use whenever you need, and taking up minimal space in your bag or pocket. Easy Operation: The presentation click pointer has simple and intuitive buttons, allowing you to browse slides and control presentations effortlessly, without complicated operations. AAA Battery: The remote presenation clicker has no charging required, just need to install an AAA battery when use, very convenient to replace.