(4D laser level with 16 lines): two 360° horizontal lines and two 360° vertical lines provide full and flat coverage of floors, walls and ceilings throughout the room. Precise positioning of the 4D laser line in 16 lines, adjustable up to 4/8/12/16 lines, the 4D laser level provides omnidirectional leveling with an accuracy of ± 0,2 mm/10 m, the maximum internal working range is about 25 m in diameter. (Visible inside and outside) Our optical glass laser level, which has good light transmission and clear laser line; The brightness and thickness of the laser can be adjusted according to the ambient brightness. The light is brighter in the sun and thinner in the dark to protect your eyes and ensure the accuracy of the light. (Tilt Mode): Press and hold the OUT button for 3 seconds to activate the tilt mode. If the device is tilted, no alarm will be triggered. You can use this function, for example, to measure stairs. The self-leveling function always guarantees 100% straightness and automatically compensates for inequalities of 3°. (Automatic leveling and manual mode): This 360-degree cross laser can self-level in the 3° range and signals that it has not been leveled by flashing and beep when tilted more than 3°. Press and hold the power button on the control panel for 3 seconds to turn off the self-leveling function and lock the pendulum. (Wide application) Self-leveling cross laser Horizontal/vertical lines can be selected individually or simultaneously, depending on the application in the workplace. Suitable for auxiliary tile fixing, wall decoration, tile fixing, stair railing, etc. With strong magnetic wall mount, 1/4 and 5/8 mounting thread to meet different fastening methods. Equipped with a 360° lifting platform. Thanks to the BT connection application, it also has power display and voice control functions. The box is easy to carry, making it quick and easy to move around and store. - Inner mesh panties Material: plastic metal Battery: 1*3,7 V, 3000 mAh Beam: 360°*4, 16 lines(40) Wavelength: 532nm green light Horizontal/vertical accuracy: ± 0,2 mm / 10 m Self-advanced range: ±3° Waterproof: IP54 Working range: diameter about 25 m Working time: about 5 hours Working temperature: -5°C to 50°C Size: 135*105*126mm/5,31*4,13*4,96 inch The package includes: 1x Host 1x stand 2x batteries 1x Mini Pilot 1x Shelf 1x clip 1x iron plate 1x 1/4" to 5/8" adapter. 1x EU power cord 1x material bag 1x instruction manual