DEWALT DCLE14221GB - USB Green 2-Spot & Crossline Laser Base KitDominate challenging layout applications with the USB Rechargeable Green 2 Spot and Cross Line Laser Base Kit. Stay productive on long days with up to 16 hours of runtime per charge* and a fast 30 minute charge time (power adapter sold separately). Tackle common leveling needs with an accuracy of 1 8 in. at 30 ft. and a visible range of up to 150 ft. (45m), extendable up to 330 ft. (100m) maximum range using the DW0892G Detector (sold separately).