This is a level instrument, 16 lines for finer positioning, with self-leveling system, flexibility and stability. Equipped with LCD display, you can see the remaining electric quantity clearly. With vertical and horizontal laserlines, convenience to use. It is perfect for a variety of uses, including flooring, tile layout, paneling, wallpapering, stenciling, wainscoting, finish carpentry, socket and switch layout, wall stud layout and partition installation. Features: 16 lines for finer positioning, with self-leveling system, flexibility and stability. Equipped with LCD display, you can see the remaining electric quantity clearly. Self-leveling function can conquer small rugged place such as 3, over 3 the laser light will keep blinking to remind you to put it on a flat place. Alarm function beyond the safe range. The magnetic-damping compensation system ensures quick levelling time. 1/4" screw size for easy connection, it can be used with tripod to adjust the working height of the machine. A 360 horizontal line can be drawn on the wall. Two vertical lines can be drawn on the wall. Leaning function, it can be applied in a leaning position like upstairs building. Comes with one T-type wall mounting bracket, 7mm wall mounted distance, general for indoor and outdoor use. Three touching buttons design, one OUTDOOR/Open button, one V button, and one H button, the oblique line, horizontal line and vertical line with a clear division. The button is wear resistant, with high sensitive to switch the line mode quickly, and with comfortable hand feeling. Comes with one remote control, A=vertical line, B=horizontal line. Easy to carry with the case, providing quick and convenient mobility and storage. Note: Please do not let the laser line shoot to your eyes directly. Specifications: Name: Laser Level Main material: plastics metal Battery: 1 * rechargeable lithium battery, 3.7V, 3000mAh (included, you will find there are two 18650 batteries inside if disassemble it) Laser ray: 360* 4, 16 lines(40) Wavelength: Green light 532nm Horizontal/vertical accuracy: 0.2mm/10m Self-levelling-range: 3 Waterproof grade: IP54 Working-range: about 25m in diameter Working time: about 5 hours Green light working temperature: -5 to50