Service and Package--KAIWEETS provides 3 years after-sale service and technical support. Package: 1 X KAIWEETS KT360A, 1 x Rechargeable Battery, 1 x Type-C charger, 1 x magnetic holder, 1 x laser target plate, fabric bag, user manual..Self-leveling and manual mode--In auto self-leveling mode, the automatic leveling range of the laser level is within ± 4° (otherwise the laser will keep flashing). Switch the lock pendulum to manual mode, it could be held by hand or used on a sloped surface..Pulse Mode--The green laser level features the latest diode technology for 4x better visibility, greater accuracy and stability. In pulse mode, when used with a receiver (not included), the working range is extended to 196 feet/60 meters, a good ideal choice for outdoor use or long-distance use. Safety level-Class II, <1mW power output..3 X 360° green laser line--KT360A has 1 horizontal panel and 2 vertical panels. The ability to cover the floor, walls, and ceiling of an entire room with one horizontal line and two vertical lines helps you complete layouts quickly..Extremely long working time: Laser Level comes with 3.7V X 7.5Ah (27.75Whr) Rechargeable batteries; last a very long time more than 20 Hours.