Extremely long working time: Laser Level comes with 3.7V X 7.5Ah (27.75Whr) lithium-ion Rechargeable batteries; last a very long time more than 20 Hours (each battery). Greater visibility: Green Laser level offers the latest diode technology with 4 times better visibility and increased accuracy. Pulse mode allowed it to be used with the detector, maintains full brightness for visibility and extends the range up to 196ft/60m under 20000lux illuminance (receiver not included). Self-leveling laser level line: 3X360 laser, 1x horizontal panel and 2x vertical panels. Parallel alignment on floors, ceilings and walls with one horizontal and two vertical lines. It enables complete coverage of the entire room. Exact alignment of the device with Osram laser diode. Self-leveling within 4 degrees. 1 button for easy selection of different modes. Guaranteed fast and error-free work thanks to automatic self-leveling in a few seconds. Leveling accuracy: ± 3mm / 10m. Robust housing, IP54 waterproof and dustproof. KAIWEETS KT360A Laser Level. Items in the Package. 1 x Laser Level. 2 x Rechargeable Lithium Battery. 1 x 5V 2A Power Adapter. 1 x 3 Feet Type C Usb Charging Cable. 1 x Magnetic Pivoting Base. 1 x Laser Target Plate. 1 x Portable Bag. 1 x User Manual. Green laser, 4X brightness. Leveling range, typical: ± 4º. Leveling time, typical: =3 s. Laser type: 520 nm. LASER LEVEL WITH 3 X 360 LINE LASERS. Laser Lines can be switched on and off individually. Great Visibility Lines is 4 X brightness with green beam. One 360° horizontal line and two 360° vertical lines cover the floor, wall, ceiling all around the room. Three laser lines cross each other at 90°angles makes user quickly visualize and finish square layout.