Quartet Wireless Mouse and Laser Pointer,Class 2, Multi-Function (84503) Wireless trackball mouse with Class 2 laser pointer; Black body Page up and page down functionality for presentation slides; push a button to open Desktop, My Computer, Outlook or internet browser Projects red laser dot up to 655 feet; includes storage bag, USB receiver and 2 AAA batteries CAUTION - Laser Radiation - Do Not Stare into beam; Class II Laser Product; Maximum Output &lt;1; Wavelength(nm) 630-680