Mini size, convenient and practical. ,compact and portable. 8 functions, simple operation with three keys. 99 meters long distance measurement. Lithium battery direct charge, 200 days long standby. Power Type:Rechargeable Product name: Small Q Electronic Ruler Screen: 1.8 inch VA LCD screen (white text on black background) Shell process: fine polishing + matte blasting Screen cover: 4H super hard plexiglass Single measurement distance: up to 9.99 meters Accumulated ranging: up to 99.99 meters Accuracy: ± 0.5%, support stepless adjustment Backlight time: 30-180 seconds Buzzer: on / off Battery: 200mAh 0.74wh Charging interface: Type-C Colour:As Shown Material:Aluminum alloy + silicone + glass Package Contents: 1 x Electronic Ruler 1 x Type-C Charging Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.