Specifications: Material: Aluminum Alloy Chassis Engineering Plastics. Laser lines: 16 line. Laser Color: Green. Adapter: AC 100-240V 50-60Hz 0.3A. Wall attachment distance: 7mm. Horizontal/Vertical Accuracy: ±0.2mm/10m. Automatic leveling range: ±3°. Rotation Degree: 360°. Working distance: 25m. Working time: about 5 hours. Slash function: Yes. Protection level: IP54 Dustproof; Waterproof. Operating temperature: -5℃~50℃. Battery capacity: 4000mAh. Working environment: Indoor/Outdoor. Power: 1 x 4000mAh Rechargeable Li Battery /Direct charging(4.2V). Application: Auxiliary tiles fixing, wall decoration, floor tiles fixing, stair handrails, furred ceiling, floor tile, plastering. Features: ● 4D 16 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. ● Touch screen design, touch screen operation, more convenient. Precise measurement and more convenient to use. ● Crashworthy and anti knock, crashworthy and anti knock. ● International standard IP54 waterproof and dust-proof, multiple protection, Longer life in harsh environment. ● Large-capacity lithium battery, durable. ● ±3°Automatic self leveling function. Sound warning when beyond auto leveling range. Package Included (16 lines): 1 battery/2 battries 1 battery: ●1 x Laser Level. ●1 x Remote Control. ●1 x Lift Holder. ●1 x Wall Bracket. ●1 x Iron Sheets. ●1 x Bracket connector. ●1 x Lithium Battery. ●1 x Charger. ●1 x Anti-fall box. ●1 x Tripod Base. ●1 x User Manual. 2 battries: ●1 x Laser Level. ●1 x Remote Control. ●1 x Lift Holder. ●1 x Wall Bracket. ●1 x Iron Sheets. ●1 x Bracket connector. ●2 x Lithium Batteries. ●1 x Charger. ●1 x Anti-fall box. ●1 x Tripod Base. ●1 x User Manual. Note: 1. Please allow 0.5-1cm differences due to manual measurement. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures.Thanks for your understanding.