SPECIFICATION:
Operation Voltage: 3V
Battery: AAA battery, 1.5*2pcs
Wave Length: 532nm
Output: <30mw, CLASS IIIB Laser Product
Operating Temp Range: 15~30
Storage Temp Range: -10~30

Simply press the Laser Beam Button to drive the laser pointer; at the same time, turning the cap, laser beam will emit directly from the Laser Output Aperture. You will see sparkling stars change variously in the sky

http://picasaweb.google.com/liuyisc/GreenLaserPointersEmitSTARS