Overview: – Mini size, convenient and practical. – Lightweight to 35g, compact and portable. – 8 functions, simple operation with three keys. – 99 meters long distance measurement. – Lithium battery direct charge, 200 days long standby. Product information: Shell material: aluminum alloy silica gel Screen: 1.8 inch va lcd display Shell technology: fine polishing frosted sandblasting Screen coverage: 4h super hard Size: 53*15mm (diameter * thickness) Net weight: 35g Single measurement distance: up to 9.99 meters Cumulative scale: maximum 99.99 meters Accuracy: 0.5%, stepless support adjustment Backlight time: 30-180 seconds Buzzer: On/Off Battery: 200mah 0.74wh Tips: The product function does not include laser and infrared Packing list: 1 x electronic ruler 1 x type c charging cable