良好的测试和高质量的绿色激光指示器很容易使用，只需要按下按钮，然后你可以看到醒目的绿色光束射出光可以指向任何目标，如照片，黑板，视频显示器等老人的选择教师，教授，医生等在暗输出类型中清晰可见：固定焦距，连续输出和工作时间超过8,000小时尺寸：14 x 160mm输出功率：5mW-150mW工作与2 x AAA电池（包括）主体材料：金属身体颜色：黑色和银色

Well tested and high quality green laser pointerEasily to use, only need to push the button then you can see striking green beam of light shoot forthThe light can point at any targets, such as photos, blackboard, video monitors, and so onBest choice for teachers, professors, doctors, and so onClearly visible in the darkOutput type: fixed focus, continuous output and working time of over 8,000 hours Dimension: 14 x 160mm Output power: 5mW-150mW Works with 2 x AAA battery (included) Body material: metal Body color: black and silver