High Visibility and Accuracy? The brightness of the green laser horizontal line is 5 times that of the red beam, providing a working distance of up to 200 feet, perfect for outdoor use. 4X360° Full Layout? 2×360° horizontal planes and 2×360° vertical planes lasers cover applications such as tiling, ceiling installation and square layout. “H” represents the horizontal laser, “V” represents the vertical laser, easily switch between any laser you desire. Multiple Mode Switching? In auto-leveling mode, this laser level will automatically level within 4°. Long press the function button to activate the manual mode for locking lines at any angle. Use the pulse mode to extend the working distance to 200 feet, with an accuracy of ±2mm at 9 meters (1/13 inch at 30 feet). Waterproof and Long Battery Life? IP54 waterproof design protects the device from splashes, dust and construction debris. With a 3600mAh rechargeable lithium battery, this laser level can maintain over 6 hours of continuous working with all 16 lines fully opened. See pictures, contents verified.