* Green Laser & LED: Whether you&';re writing, reading, or in a presentation, the OPen Pro innovative 3-in-1 design including a pen, green laser, and a light will have you covered. Easy Activation: L-type Bolt Action with LED switch, easy to extend/retract the tip, or activate the light with a single upward push. Separable Design: The 2-in-1 penlight is separable into two parts, giving more flexibility for nighttime or backup lighting. Great Hands-free Experience: Our redesigned led is built into the clip for hands free use. The reinforced steel clip is easy to hook on your pocket, backpack, hat, or notebook to light up the dark. Output: 100 lumensRuntime: 8 hours Green Laser Battery 3.7 V 110mAh/407mWh Rechargeable (Built-in) Size 153*12.7mm