Kensington Presenter Expert™ Wireless Cursor Control with Green Laser. Wireless receiver interface: USB, Frequency band: 2.4 GHz, Wireless range: 1771.7" (45 m). Product color: Black, Presenter functions: Laser pointer, Laser pointer color: Green. Width: 5.3" (134.6 mm), Depth: 2.5" (63.5 mm), Height: 7.87" (200 mm)