Features: - 4D 16/12/8 line irradiation, 360° without dead angle. - Indoor and outdoor general Universal, High brightness green, indoor and outdoor clearly, far projection distance, high laser height, clear lines. - Precise measurement and more convenient to use. - 8/12/16 line can be Optional, suitable for different occasions to meet different engineering needs. - Crashworthy and anti knock, 4D soft rubber clad, crashworthy and anti knock. - International standard IP54 waterproof and dust-proof, multiple protection, Longer life in harsh environment. - 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. - With the use of tripod, you can work with 180° oblique line. - ±3°Automatic self leveling function. Sound warning when beyond auto leveling range. - LED power display on battery. - With Bluetooth control function, the mobile phone Bluetooth connects the level meter, and it is convenient to control the level machine on the mobile phone APP. Specification: Material: Aluminum Alloy Chassis Engineering Plastics. Laser lines: 16/12/8 lines. Laser Color: Green. Wall attachment distance: 7mm. Automatic leveling range: ±3°. Rotation Degree: 360°. Protection level: IP54 Dustproof; Waterproof. Operating temperature: -20℃-50℃. Working environment: Indoor/Outdoor. Working time: 12~16h. Size: 16 x 13 x 6cm/6.5 x 5 x 2.4in. Package Included: 1 x Laser Level. 1 x Bracket connector. 1 x Remote Control. 1 x Lift Holder. 1 x Iron Sheets. 1 x Tripod connector. 1 x Lithium Battery. 1 x Charger(US/EU/AU Plug). 1 x Anti-fall box. 1 x User Manual. 1 x Wall Bracket