Specifications: ● Laser Beam: Green Beam. ● Screen type: LCD screen with backlight. ● Projection: 16 Green Laser Lines. ● Laser Class: Class 2 (IEC/EN60825-1/2014), <1mW power output. ● Laser Wavelength: 505nm-520nm. ● Horizontal / Vertical Accuracy: ±2mm/10m, ±1/13 in. at 33 ft. ● Leveling / Compensation Range: 3.5°±1°. ● Leveling Time: ≤3s. ● Working Distance: ≥20m, ≥40m with level. ● Working Time: About 5 hours with li-ion battery, About 0.5 hours with AA battery. ●Power Source: 7.4V/2600mAhLi-ion battery(Built-in); 4 x AA battery(Not included). ● Mount Size: 1/4'-20. ● IP Rating: IP54, waterproof, dustproof and shockproof, reliability and robustness. ● Operating Temperature: Between -10℃ and +50℃. ● Storage temperature: Between -20℃ and +70℃. Package Included: 1 x Green Laser Level. 1 x Wall Hanging Plate. 1 x Multifunctional Pivoting Base. 1 x 2600mAh Li-ion Battery. 1 x Remote Control. 1 x Power Adapter. 1 x Lifting Base. 1 x AA Battery Compartment. 4 x AA battery (not included). 1 x User Manual. 1 x Hard Carry Case. Warning: Do not aim the laser beam directly at the eyes.