Type: Oral Irrigator / Water Jet Speed: 2 Tank Size: 165 ml Power Source: Two "AA" batteries (not included) Dimensions: 8.6 x 2.7 x 2 Weight: 7.4 oz. (without batteries) Features: Portable Great for Home & Travel Use 2-Speed Water Jet Flow Water jet is gentle on gums Easy-fill Tank Holds 5.5 oz (165ml) Waterproof and Washable Powerful and Precise Cleaning Battery Operated Labor: 2 years limited