The Milwaukee M12 Green Cross Line and Plumb Points Laser provides users with all day runtime and best visibility in its class. Get 15 plus hours of continuous runtime with an M12 REDLITHIUM 3.0 CP Battery (sold separately) for ultimate productivity. The high-intensity green laser offers users superior visibility up to 125 ft. for long-range applications. The vertical and horizontal lines make alignment and level applications easy, while the 2 plumb dots allow for quick transfers from floor to ceiling. The amplified rare earth magnets provide a strong hold and will not slide on steel studs, while an integrated hang hole makes setup easy and efficient in any environment. This is a tool only and does not include a battery, charger, or case. The Milwaukee 165 ft. Laser Line Detector extends laser functionality up-to 165 feet indoors and outdoors for the fastest point-to-point alignment. The LEDs on front and back provide users with high visibility feedback improving the set-up process. Rare earth magnets located on 2-sides of the detector allow it to easily attach to metal surfaces, ideal for installing ceiling grid. The included material clamp is perfect for setting elevation. The Laser Detector also features adjustable audio and over 65-hours of runtime. The 165 ft. Laser Line Detector is compatible with all Milwaukee Line and Plane Lasers. This kit includes 1 laser and 1 laser detector.