The Bosch GCL165-42GL 3.7 V green-beam self-leveling cross-line laser with plumb points pairs remarkable power flexibility with green-beam technology to emit lines up to 4X brighter than standard red beams. Use with the included rechargeable 3.7 V lithium-ion 3 Ah battery or AA batteries (sold separately) for enhanced versatility and longer runtime on the job. The included USB-C cord even provides the option to charge the tool while in use for greater flexibility and efficiency. Built-in VisiMax technology monitors temperature and power consumption to deliver the brightest line for the application, optimize energy efficiency and provide long term tool reliability. Full rubber over mold housing helps protect the level at every major impact point. IP65-rated, the laser can withstand tough, rainy conditions and is dust-tight for enhanced protection. The fine adjustment knob and pivot rotation provide accurate point-to-point alignment by allowing the laser to rotate around the point while turning. Fitted with a U-shaped laser outlet window to provide a wider horizontal reach of the laser line. With a working range of up to 100 ft. The bright, thin lines provide an accuracy of 1/8 at 30 ft. Further extend the range to 330 ft (measured at the horizontal line) with the levels receiver compatibility (sold separately). Equipped with a Smart Pendulum System, the tool self-levels, will indicate any out-of-level condition and then locks when switched off for secure transport. Keep a handle on the laser with the rubber-grip base and easily position using the strong magnets or 1/4 in threading mount. Complete with an outstanding operating time of 8 hr (using a lithium-ion battery), for all-day power and productivity.Power flexibility – works with included rechargeable 3.7 V lithium-ion 3.0 Ah battery or AA batteries (sold separately) for less downtime on the jobJobsite tough construction – IP65 rated, for dust-tight and water-resistant durability in tough jobsite conditionsUSB-C charging cord – for quick charging, even while in useBuilt-in VisiMax technology – monitors power consumption to maximize line visibility and extend battery lifeBright green-beam laser – projects up to 4X brighter than standard red beamsOutstanding runtime – delivers 8 hr of operation (when using Lithium-ion battery) for all-day powerFine adjustment knob with pivot rotation – mount rotates while staying centered on the plumb point to deliver accurate point-to-point alignmentU-shaped laser outlet window – for wider horizontal laser line reachBright, thin lines – with 100 ft range that level within 1/8 in accuracy at 30 ft distance