Product Description: Quantity: 1 piece Shell material: aluminum alloy + silicone. Shell technology: fine polishing + matte sandblasting. Screen: LCD screen VA 1.8" (white characters on black background). Screen protection: 4H super hard glass. Dimensions: 53 x 15 mm. Net weight: 35 g. Single range: up to 9.99 m. Accumulated range: 99.99 meters maximum Accuracy: plus or minus 0.5%, continuously adjustable. Backlight time: 30-180 seconds. Buzzer: on/off. Battery: 200 mAh, 0.74 Wh. Charging Port: Type-C. Contents: 1 electronic tape measure.+1 USB cable. Multi-function: our electronic tape measure has 10 practical functions, such as online measurement straight line, round measurement, arbitrary curve measurement, irregular surface measurement, cylindrical diameter measurement, accumulation/subtraction 99m ultra-long distance measurement: measurement of the 0-99m convenient distance and 99m maximum distance measurement (automatic accumulation). Measurement Data - Millimeter-level precision measurement data can be automatically accumulated and subtracted, and 10 groups of historical records can be called up at any time, which is convenient and practical. Lightweight and portable - 15mm thick and 30g. It is only 1/3 the size of an ordinary tape measure and 1/4 the weight, which is convenient to carry and measure at any time. High-tech microprocessor: adopts microprocessor low power consumption to achieve super long standby time and battery life.