Integrated 2.4Ghz Wireless Remote Laser Pointer With 650nm Wavelength

Integrated 2.4Ghz USB Wireless Presenter Laser Pointer PPT Remote Control for Powerpoint Presentation Specifications: Transmitter Technology: Radio Frequency Frequency: 2.4GHz Control Distance: 100m Class 3R Max Output: Distance: >200m Wavelength: 650nm Battery: AAA*1 Working Voltage: 1.5V Dimension: 138*18mm Weight: 25g Safety Warning: Be warned that 2.4GHz pointers are not toys; they should never under any circumstances be directed into people's eyes or at passing aircraft.