Logitech R400 Wireless Presenter

Product Details:

• Laser Class: Class 2 Laser 
• Max Output: Less than 1mW 
• Wave Length: 640～660nm (red light) 
• Battery type: 2 AAA batteries 
• Battery life (Laser pointer): 20 hours maximum 
• Battery life (Presenter): 1050-hour maximum 
• Wireless operating distance: Approx 10m
• Wireless technology: 2.4GHｚwireless technology 
• Supported OS
• Windows Vista, Windows 7, Windows 8 
• Interface: USB