Tanita Kitchen scale Scale cuisine With silicone cover Digital 2kg 0.1g unit Red KJ-212 RD The cover can be washed

Does this product require batteries/batteries?;Do I need to assemble it?;Size (approx.): 13 cm (width) X 2.7 cm (depth) X 19.6 cm (height);Material: Body/abs(acrylonitrile, butadiene, styrene) resin, silicone rubber, display/pet(polyethylene terephthalate);Country of origin:China;Power supply: Alkaline AAA dry cell battery x 2 pcs (Trial battery included);Measuring range: 0~2kg;Minimum display: Normal mode/1g, trace mode/0.1g for 0~200g, 0.5g for 200~1000g;Functions: with regional setting function, with ml mode function (for milk and water), 0 display (tare), auto power off, with hook hole for wall hanging;Acquisition of jis mark