Battery supplied, mastered by CPU, infrared-ray inductionAccept paper roll: 190-200mm (7.50-8") wide, dia. 11.9")The paper is delivered automatically start when finished with an existing partialroll Blue and coffee color cover availablePower: DC 4 X 1.5V R20SPaper dimensions: 190-200mm (7.5-8") wide, dia. <=200mm (8")Each dispense length: 200 mm, 250mm, 300mm (8", 8.9", 11.9")Dimensions: 630 x 425 x 540mm (24.9" x 16.9" x 21.2")Outer packing:4pcs/ctnN.W.: 16kg (34.8lbs) producing area:China payment:T/T, L/C supplying capacity:1,000pcs/month