Description it is a very functional product. uka Small Q is capable of measuring various irregular shapes. It is not only possible to measure the circumference of the circle , but also the length of the line in different arcs , irregular curve , circumference of bodies of irregular shapes , body diameters . At the same time, the meter can calculate or subtract measured distances or even convert units of different quantities. The Duka Small Q can also be used to set an audible distance alert. Main Features: - Duka Small Q can measure straight and curved surfaces, soft and irregular objects just about anything. Its use is multipurpose, whether it is a household, workshop and find application in various craftsmen, or even tailors. - This great helper is powered by a 200 mAh built-in rechargeable battery that is charged via the USB Type-C connector . Its great to see that this modern connector extends to cheaper devices. - With up to 200 days of standby time per charge , it can measure distances up to a total of 3,000 meters . For two-hour operation, it is sufficient to charge the meter for only 5 minutes. - 8 functions: Linear measurement, circular arc measurement, arbitrary curve measurement, irregular surface measurement, cylindrical diameter measurement, cumulative subtraction, measurement prompt sound, unit switching - Diverse scenarios: flat, curved, irregular surface, the diameter of the circumference, a soft object can be measured, covering life, all phases, convenient and efficient Specifications Brand: Duka( EcoChain Cooperation, there is no logo on it) Material: Aluminum + Silicone Only 35g, compact and convenient 99m long distance Battery: 200 mAh built-in rechargeable battery USB Charging Port: Type-C (Cable Included) Material: Aluminum Alloy,Silicone Application: Hardware Tool,Household Appliances Product weight: 0.0350 kg Package weight: 0.0500 kg Product size (L x W x H): 5.30 x 5.30 x 1.50 cm / 2.09 x 2.09 x 0.59 inches Package size (L x W x H): 5.50 x 5.50 x 1.60 cm / 2.17 x 2.17 x 0.63 inches Package Contents: 1 x Electronic Ruler 1 x Type-c Data Line