Size: 14mm (Diameter) * 142mm(Length) Weight: about 28g Material:  Brass (body part of the pen), Clip (chrome finished) Characteristics: Fixed focus, Red spots, Lifespan >3000 hrs Wavelength: 640 ~ 660 nm Power: Typical <5mW (Customizable) Diameter of Light Spot: <5mW - 8mm (Diameter) at 6mm Charging Time: about 2 hours Charging Interface: USB port USB Interface: High Speed USB2.0 Working Voltage: 3.7V Working Current: <50(mA) Working Temperature: 0°C to 40°C Storage Temperature:  -20~60℃ Operation System:  Windows XP / Windows Vista / Windows 7 / Windows 8 / Mac OSX10.0.2

INSTRUCTION - 5 Fuctions

USB Function   USB port is available for all laptops. The USB port is designed to be in the middle of the pen. Memoty Capacity can be 1G, 2G, 4G, 8G, 16G, and 32G. Typical 8G   Laser Function (Red)   Brightness is stable. Best for business presentations, teaching, and guiding.   Rechargeable   Eco-friendly and cost-saving. USB can be charged whenever you insert it to computers.   Stylus   Made of plastic with great flexibility and sense of touch. Through special conduct and anti-friction process, the stylus can be accurate and do no harm to monitors.   Writing   Fashion office supplies. Can be refilled.

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