Panasonic EW-DJ10-A Portable 2-Speed Oral Irrigator Type: Oral Irrigator / Water Jet Speed: 2 Speeds Power Source: Two AA batteries (not included) Dimensions: 8.6 x 2.7 x 2 (used) Weight: 7.4 oz. (without batteries) Features: 1600 Pulses per Minute Portable Cordless Parts: 2 years limited Labor: 2 years limited