Features:This is a mini rangefinder.It is a whole set of high precision optics, which come into a compact body.High-tech measuring tools that can achieve 2mm measurement accuracy.Made of high quality aluminum-magnesium alloy, it is light, portable and textured.It can be charged by USB and lasts for a long time to avoid frequent battery replacement.Obstacles can be avoided for angle and pythagorean theorem measurement.Simple interaction, without complicated settings, make it easy to operate.You can master the current measurement distance front/back Reference, power, bluetooth connection status, etc.After short pre to emit laser, the current length can be displayed in real time, and the data feedback is as fast as 0.1 seconds.A wide range of uses, such as window and window height, warehouse capacity, stair Angle and home size, etc.Specifications:Material: Aluminium AlloyMaximum Ranging: 0.05-40/50/60mRanging Error: 2mmDistance measurement accuracy: (2mm+d *1/10000)*Size: 80*37*20mmColor: BlackLaser Type: 630-670nm, <1mWAutomatic cutting laser: 20 seconds (Single Measurement)Automatic shutdown: 150 secondsCharging specification: DC5V 0.35AFull Charge Measurement Times: 8000 timesBattery Capacity: 370mAh Lithium BatteryStorage Temperature: -20C~60COperating Temperature Range: 0C~40CStorage Humidity: 20%~80% RH Note: There could be some slight differences in the color tone of the pictures and the actual item.Please allow 1-2mm differs due to manual measurement, thanks. Package Included: 1Pc x Mini RangefinderPacked Safely in Retail Box.