Shenzhen Usbetter Technology Co., Ltd.  

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1. Technology: Infrared. Battery: Lr44x3          
2. Material: Brass. Can be coverd by rubber.
 
3. Functions:          
A. Laser pointer. Laser wavelength: 650nm. Laser power output: <5mw  
B. Page up/down functions.  support excel, word, powerpoint, website, acdsee and so on.    
     
4. Operation system: Windows98/2000/2003/XP/vista. Linus        
5. Customized logo printing and packaging services.      

6. Can bulit-in flash memory. (64MB to 4GB optional)    
7. Good equipment for multimedia teaching and meeting.