HiRO H50064 3 in 1 2.4 GHz WiFi Silver Presenter Laser Pointer Wireless Mouse Up to 328ft Windows Mac Compatible 3-In-1 Multi-Functions Implemented into a Single Device: One Control for PowerPoint Presentation, Laser Pointer, Wireless Mouse Functions Ergonomic Design & Compact Size: Easy to Use like a Normal Wireless Mouse Extended Remote Distance up to 328 ft Ensure Interference: Free Control, No Need for any Additional Personal Assistance No Need to Aim at the USB Receiver Mac Compatible, No Driver Required even with the Dated Windows 98 2nd Edition: Can be Transferred / Used on any Mac & PC, Frequency Range: 2.4 ~ 2.483 GHz, Remote Range (Approximate): Indoor - 100 ft/30 m, Outdoor - 328 ft/100 m Laser Specification: Semiconductor Laser Wavelength: 650 nm, Emission Duration: Continuous, Output Power: &lt; 0.95mW, Operating Voltage: 2.4~3.3 V, Laser: 2.6~3.3 V Output Power: &lt; 1mW, Normal Power: &lt; 10mA, Laser Operation: &lt; 20mA, Sleep Mode: &lt;10mA, Power Source: 2x AAA Batteries