Features: 1Accurate and Reliable: The digital laser tape measure can measure distance with precision by using the infrared technology, having accuracy of 1.5mm. 2Convenient and Easy to Use: With its self lock device, this laser distance meter allows for hands free measurement. Simply press the button, automatically lock position after pulling out the tape. Press the release button to retract automatically. 3Versatile Use: This laser area volume measuring tape not only measures distance accurately, but it also has functions of measuring foundation levelness, installation and construction equipment, precision testing, bearing testing, automated inspection, etc. 4Various Scenes: The long range of this digital distance laser tape measure makes it perfect for measuring distances in high ceilings, rooftops, and other difficult to access areas. 5Portable and Rechargeable: This infrared laser tape measure comes with a built in 18650 lithium battery, providing extended usage time. Its compact size allows for easy storage and carry. Specification: Item Type: Digital Laser Tape MeasureBattery Model: 18650 Lithium Battery 180mAh Capacity (Shipped With Built In Battery)Weight: Approx. 368.00g / 12.98oz Package List: 1 x Laser Distance Meter1 x Accessories1 x User Manual