Specifications Material: Aluminium alloy Wave length: 650nm Normal operating temperature :15-30 degrees Storage Temperature: -10℃ -40℃ Power Supply: 2 * AAA Batteries (Not included) Laser Color: Red Pen Color: Black Item size: 155 * 13mm Safety Do not look into the aperture of the laser beam. Laser radiation is potentially harmful! Do not directly aim into eye. Keep out of reach of children Package Includes 5x Red aser Pen(No battery and charger).
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