F2s USB Wireless Presenter R400 PPT Presenter Wireless Slide Changer Laser Pointer.
	
Intuitive controls and red laser pointer make presentations a snap, even in the darkest auditoriums
	
No software needed, just plug the receiver into a USB port and you're ready to go
	
Supported OS: Windows Vista, Windows 7, Windows 8, Windows 10 or later, Wave Length: 640～660nm (red light), Wireless technology: 2.4 GHz wireless technology