Feature: 1. 1. Compact and Portable Design: The level features a compact, lightweight design with a carrying case for easy mobility and storage, making it convenient to transport and store. 2. 2. Precise 4D 16-Line Positioning: Capable of emitting up to 16 laser lines individually or simultaneously, providing precise and detailed positioning. It also includes a 3° self-leveling system for flexible and stable operation. 3. 3. High-Quality Components: Utilizes high-quality laser diodes and precision tapered mirrors to produce fine, bright laser lines with high accuracy. The brightness of the laser lines is adjustable for optimal visibility in various lighting conditions. 4. 4. Self-Checking and Calibration: Equipped with a self-checking calibration function that automatically levels within ±3°. If the angle exceeds 3°, the laser lines will flash continuously, and the device will emit a "beep" sound, alerting you to reset on a flat surface. 5. 5. Versatile Applications: Ideal for a wide range of indoor construction tasks, including tile laying, paneling, wallpaper installation, formwork, baseboard installation, finish carpentry, wall stud placement, and partition wall installation. 6. 6. Extendable and Adjustable: Comes with an extendable pole that is adjustable in three height settings, compatible with most 5/8" threaded interfaces, enhancing its versatility and usability. 7. 7. User-Friendly Operation: Features durable, wear-resistant buttons with high sensitivity, allowing for quick and comfortable switching between line modes. The ergonomic design ensures a comfortable grip and ease of use. Specification: Horizontal accuracy: ±1.5mm/7m Vertical accuracy: ±2mm/7m Lower point accuracy: ±1.5mm/1.4m Orthogonal accuracy: 90°±60" Zenith accuracy: ±1mm/5m Automatic leveling range: approximately ±2.5° Laser wavelength: 532nm (green) Laser emission level: safety standard level 2 Working temperature: -10°~+50℃ Battery: 2400mAH*2 Package List: 1*Level 2*Batteries 1*Charger 1*Tripod 1*Lifting platform 1*Iron plate 1*Wall mount 1*Remote control 1*Instruction manual 1*Plastic box 1*1.0m tripod 1*Glasses 1*Tripod interface 1*Window clip