With a clinically proven combination of water pressure and pulsations, the product can clean viruses and bacteria attached to the nasal cavity, also it can removes harmful bacteria deeply between teeth and the gumline where the traditional brush can not reach. V8-x1 features & advantages For both oral care and nasal cavity care: 1.Clean interdental area effectively. 1).Clean viruses and bacteria at nasal cavity by warm salt water 2.Message gum and prevent respiratory disease 3.Portable and rechargeable 4.Waterproof and washable 5.360¡ã rated nozzle 6.Patent, ce, rohs, fcc certificates V8-x1 specifications 1.Power supply: ac100-240v 2.Operated by 2pcs of aa size nimh rechargerable batteries(battery included) 3.Battery capacity: 1700mah*2 4.Water pressure: 72.5-123psi 5.Pump frequency: 1, 600/min 6.Three operation modes for varying oral care needs---soft & normal& puise 7.Battery fully recharges in 8 hours 8.Operating time(full charge): approx.50 seconds per full tank, approx 25-30minutes at normal setting 9.Tank velume: 160ml 1. Production size: 75*56*262mm (with nozzle) , 75*56*185mm (without nozzle), n.W.: 330g(without box) 2. Unit size: 135*83*194mm ( color box) , 480g/set 3. Carton size: 43*28.5*40.5cm (20pcs/box), g.W.:11kgs 4. 20"fcl container: 10000pcs A unit including: 1pcs body, 2pcs oral nozzles, 2pcs nasal nozzles, 1pcs charger, 1pcs manual, 1pcs color gift box.