Feature:1. DIGITAL TAPE MEASURE: The data is displayed on the LCD screen. Make your measurement and reading more convenient.2. EASY TO USE: The digital tape measure adopts USB charging, built in lithium battery, internal and external switches, making measurement convenient.3. ACCURATE MEASUREMENT: This is an accurate measurement tape with an accuracy of 2mm and a digital accuracy of 2mm. The function of quickly extracting intermediate values and recording 20 sets of historical data can save time for your work.4. UNIT CONVERSION: Let this metric tape measure do this job for you. Long press and hold UNIT to convert the four units of m, ft, in, and ft, in to meet all your needs.5. WIDELY USED: 5m 40m tape measure is widely used in residential or commercial projects. It is the perfect measuring tool for anyone, from hands on to professional craftsman.Specification:Item Type: Digital Tape MeasureMaterial: Aluminum Alloy, ABSBattery: Polymer battery x 1Battery Capacity: 180mAh (shipped with built in battery)Measuring Length With a Tape Measure: Approx. 5m / 16.4ftInfrared Measurement Length: Approx. 40m / 131.2ftAccuracy: Approx. 2mm / 0.08inCan Measure Area, Volume, and Distance.Package List:1 x Tape Measure 1 x Hanging Rope 1 x USB Cable