【High-precision measuring range】: 0.02 to 60 m; Accuracy: +/- 1.5 mm (accurate to the 3rd decimal place); Optical lens, the measurement data is more accurate and stable, with self-calibration function 【USB rechargeable, easy to use】: Comes with a USB charging cable, so you can say goodbye to batteries. With the push of a button, you can quickly check the height and length of the building, or the area and volume, suitable for DIY enthusiasts and professionals, widely used in construction sites, especially in apartments, buildings, factories and warehouses, etc. 【Mute function automatic shutdown function】: Mute function to avoid noise. LCD display screen with backlight for long life, suitable for example in humid or dirty environments. [Various functions mini - portable]: distance measurement with rebound accuracy, area, volume function (indirect measurement), continuous measurement function, addition and subtraction measurement, minimum and maximum value. Small and light, it can be put