Cup body material: acrylonitrile butadiene stupid plastic + Tritan Blade material 304 austenitic stainless steel 06Cr19Ni10 Product capacity: 350ml Input voltage: DC5V Charging time: 3-4 hours Output voltage / current: DC3.7 Battery capacity: 2000MAH Packing specification 80 * 80 * 210mm Product size: 7.82 * 7.82 * 23.4cm