Features : 1. 4D 16 line irradiation, 360 without dead angle. 2. Indoor and outdoor general Universal, High brightness green, indoor and outdoor clearly, far projection distance, high laser height, clear lines. 3. Precise measurement and more convenient to use. 4. 16 line can be adjustable, suitable for different occasions to meet different engineering needs. 5. Crashworthy and anti knock, 4D soft rubber clad, crashworthy and anti knock. 6. International standard IP54 waterproof and dust-proof, multiple protection, Longer life in harsh environment. 7. 4000mAh large capacity battery with longer endurance life, long service life, 4000 MAH large capacity li batteries, standby time more than 72 hours, working hours can last 12-16 hours,can work for 2 days after charged. 8. With the use of three tripod, you can work with 180 oblique line. 9. 3Automatic self leveling function. Sound warning when beyond auto leveling range. 10. 360 rotating base with fine tuning knob, quickly identify the target.Thickened metal base provides stable support and it is shockproof, shatter-proof. Origin: CN Note: Due to the light and screen difference, the item's color may be slightly different from the pictures.