IR pen for wiimote interactive whiteboard 1. Perfect for presentation, tutorial and offive meeting use 2. Utilizing the latest infrared technology 3. Case material: aluminium alloy 4. Solid, heavy duty construction 5. Power : 2x aaa batteries 6. Operating lifetime: 3000 to 5000 hours 7. Operation temperature: 200300 c 8. Storage temperature: -100 c500 c 9. Remote technology: infrared technology 10. Six rhombus design is not easy to slide from lectern, feel comfortable in hand 11. Compliant to rohs directive 2002/95/ec and in accordance to weee 2002/96/ec 12. Halogen-free according to iec 61249-2-21 definition 3. Extending length from 380mm to 685mm 14. Good spectral matching with si photodetectors. Carton