Panasonic EW2A Cordless Water Flosser - 3-Speed Adjustable Oral Irrigator with Rechargeable Battery, Portable & Washable for Travel, Home & Daily Dental Care - Perfect for Braces, Implants & Gum Health Maintenance

Update Mar 23, 2015.1st review was 3 stars however now I can give 5.I trained myself for using it every day once a day(usually at night) for about 2 weeks now.Water pressure is quite strong but I found how to control it, it can be controlled by how much water you keepin your mouth. I think basically it is used not keeping your mouth widely open like looking teeth on mirrorwhile brushing your teeth.How I trained myself.1st, Completely close your mouth with putting the nozzle in to your mouth and feel how the pain of water pressurecan be controlled. While the nozzle top is in the water, pressure isn't felt so strong. By draining water from mouthlittle by little, the pain can be controlled.2nd, Put it in your mouth without switch on, open mouth and look at mirror, and see how you need to turn the nozzleby right thumb to properly aim at periodontal pocket.(I am a right hander)Once this can be done well, you can imagine direction of nozzle.Now let's try with turning it on, face down, slightly open mouth and control the draining amount from the water, move the nozzle imagining where it is aiming at, now you feel water pressure so that you can also feel where the nozzle is and water hitting. then just keep doing it.Jet is a little different, when using Jet, spot the nozzle between teeth without switch on, hold it well and turn on. Very strong pressure water goes through between teeth even normal flosser won't go in. It's grate but never shoot gum or periodontal pocket directly, you might get kinda injured.It was mess when I used it very early time but now I can use it quite cleanly even busy morning and teeth are very fresh and gum condition is getting better every day so that now I don't feel pain or bleed with flossing periodontal pocket with it. I got braced on my teeth but teeth are cleaner than before getting braced. My wife and daughter told my bad breath was gone.(I brush my teeth before using it)=================================================================================First reviewI got bracing on my teeth a few days ago and struggled with flossing my teeth every day and found this product.It cleans my braced teeth quite well but be careful for strong sharp water pressure and splash all over.It is very power full even "soft" , it is quite painful when water hit gum or tongue directly, but still ok.Regular power is also quite strong, don't aim at periodontal pocket directly, (I don't recommend it) it's quite painful.I have to be careful where I aiming at, not directly the pocket, it must be lower part of tooth. then strong water flowget into the pocket and flash the pocket.Jet is even more strong and I don't understand who can use such strong sharp water pressure in mouth.Manual said don't use it on periodontal pocket. Jet is to go between teeth, not for between toothand gum.(never try!) It's kinda danger using JET it in mouth. even shooting my hand, it's quite painful.I think it's human nature, when it's pain, I took it off from mouth first... instead of tun it off first in mouthand take it off..so when it came out from mouth, it's usually aiming at my face. it's not so safe if it'shit an eye directly.(maybe better use it with safety glasses??) anyway but it is that much quite strong.Need a little bit of training to get use to use it.Power button is press-ON, press-off. not press & hold for ON. Press & hold for ON would be better I believe.then I could place the nozzle first and just press for short time easy hitting and save limited water in tank.It is NiMH battery powered, not user replaceable but manual shows how to take them off for recycle so actuallyit can be replaceable but water proof may not function correctly if installation is not good.100-240V AC power for charging.Body has no metal contact for charging, so I guess it is using inductive charging system so that it takes 15hrsfor full charge and allows 15min operation.(sound so short for charging time but long enough for actual use)Water tank is not big enough for me to clean even only my bottom teeth with softpressure. I refill the tank 4-5 times to clean all teeth.Be ready to splash all over your washbasin, mirror, sink whatever around you are facing to.It makes mess all over. It's 100% water proof so that it's better use while taking shower, bettertrain yourself using it in shower.It comes with 2 nozzles, charger, charger mount screws.(I don't use it)maybe the way advertising it will give cleaner impression for people but when it's using it,really splash all over. so I give 3 starts. but it clears my teeth very well. not as tiring as flossing.