Brand from Hong Kong: B.Bellus. Using high speed water jets to clean tooth surfaces, interdental spaces and gums to remove food debris and plaque.Together with a toothbrush, it can effectively prevent oral diseases, reduce the accumulation of dental plaque and calculus, and keep the oral cavity clean.Up to 1,200 pulses per minute.With a 60ml water tank, it can completely remove food residues in one go.0.6mm water column diameter, deeply cleans the difficult-to-brush parts of the oral cavity.2 water jet modes: massage and clean.Massage Mode (43PSI): Intermittent jet of water to massage the gums.Cleaning mode (70PSI): continuous water jet, deep cleaning of the mouth.With the retractable water tank and nozzle hidden storage, easy to carry and travel.