[2.4GHz Wireless Technology]: The laser pointer uses 2.4GHz wireless technology and is made of safe, environmentally friendly ABS material. The remote control range is up to 20 meters. You can operate the wireless presentation remote freely in any direction, including in low-light environments where the red laser remains highly visible. [Note: Two AAA batteries are not included] [Excellent Details]: The laser pointer is compact and well-designed, featuring five ergonomic touch controls for intuitive operation without needing to tilt your head. It includes a built-in USB receiver for easy storage and portability. Compatible with Windows XP, 2000, 98, Windows 7, Mac OS, Linux, and Vista. [Scientific Design]: The PPT clicker features a streamlined, ergonomically shaped body with a non-slip textured back for comfortable grip and precise slide navigation. Functions include red laser pointer, black screen, next slide, previous slide, full-screen mode, and power button. [Easy to Use]: Plug-and-play operation. Simply insert the USB receiver into your computer’s USB port. No software or driver installation required. To use, switch the power button to “On”. [Wide Application]: This presentation pointer is ideal for teachers, trainers, sales professionals, and event coordinators for classroom instruction, business presentations, conferences, and meetings.