Features:  Compact size, lightweight and portable, easy to carry with the case, providing quick and convenient mobility and storage.  Output 16 laser lines separately or simultaneously for finer positioning, with 3° self-leveling system, flexibility and stability.  Adopts optical glass, fine transmission, with clear laser light.  Equipped with self-test calibration function, ≤3° automatic leveling, but if the angle is over 3°, the laser light will keep blinking and also has beep sound to reminding you to reset them on a flat ground.  Push button design, push left to open it, push right to close it.  Touching buttons design, horizontal line and vertical line with a clearly division.  The button is wear resistant, with high sensitive to switch the line mode quickly, and with comfortable hand feeling.  The T-shape bracket with 7mm wall mounted distance, which has 360° rotatable base, and equipped with fine adjustment mechanism, can make the machine quickly find the target(1/4" screw size).  Comes with one tripod base with 360° rotatable design, male and female 5/8" thread, for easy to connected with 5/8" laser level and 5/8" bracket.  1/4" to 5/8" thread adapter for easy connection, it can be used with 5/8" thread tripod to adjust the working height of the machine.  The laser level lift bracket, height adjustable, anti-slip texture design for increasing friction, more stable placement.  Equipped with window clip holder for works with wall-mounted bracket.  Waterproof and dustproof, suitable for both indoor and outdoor use, continuous laser pulsed laser.    Note:  The laser output maker is located on the output hole.  Do not stare directly at the laser light.  Do not disassemble the instrument and perform internal repairs by yourself.  This instrument meets the laser radiation safety rating standard.    Specifications:  Name: Laser Level  Main material: plastics+metal  Battery: 2 * rechargeable battery, 3.7V, 1200mAh (included, you will find there are two batteries inside if disassemble one)  Laser ray: 360 * 4, 16 lines  Laser wavelength: green light 520nm  Laser lines accuracy: ±0.2mm/10m  Self-levelling-range: ±3°  Working distance: 25m  Working temperature: -5℃ to 50℃  Item size:  Level machine: 103 * 106 * 133mm / 4.06 * 4.17 * 5.24in  Battery size: 74 * 53 * 30mm / 2.91 * 2.09 * 1.18in  Base size: 96 * 82 * 73mm / 3.78 * 3.23 * 2.87in  Wall-mounted bracket size: 160 * 87 * 72mm / 6.30 * 3.43 * 2.83in  Iron-board: 100 * 60 * 12mm / 3.94 * 2.36 * 1.47in  Lifting platform size: 111 * 92 * 33mm / 4.37 * 3.62 * 1.30in  Carrying bag: 233 * 213 * 152mm / 9.17 * 8.39 * 5.98in  Item weight: 1494g / 3.29lb  Package size: 250 * 220 * 160mm / 9.84 * 8.66 * 6.30in  Package weight: 1659g / 3.66lb    Packing List:  1 * Level Machine  2 * Battery  1 * Tripod Base  1 * Wall-mounted Bracket  1 * Iron Board  1 * Lifting Platform  1 * 1/4inch to 5/8inch Adapter  1 * Clip Holder  1 * Power Adapter (EU/UK/US-Plug Optional)  1 * Carrying Bag  1 * Guideline