Features:

• Targets hard to reach parts of the mouth with an arc shaped design that cleans your teeth thoroughly and accurately
• Removes debris that is hard to reach with a toothbrush or floss
• Great for cleaning braces
• 1600 pulses per minute - more power than many corded units, for precise, effective power
• 165 ml tank capacity

Editor Reviews:

Product Description:
With the high speed PANASONIC EW1270AC Portable Irrigator your mouth can feel clean and refreshed anywhere, anytime. Strengthens gums by massaging gumlines with just the right amount of pressure Folds down to nearly half its original size for easy cleaning and carrying Fits easily into your bag and packs away without any messy cords or awkward tanks, so you can take the irrigator wherever you go! Power Source - 3V DC or 2 1.5V alkaline batteries (not included) Dimensions (Tank Open) - 8.9H x 1.8W x 2.5D Dimensions (Tank Close) - 5.9H x 1.8W x 2.5D Weight - 7.4 ounces (without batteries)

Rating : - Panasonic EW1270AC Portable Oral Irrigator
I waterpik daily so I use it every time I travel. Note, the picture is of a different (newer?) model but I'm happy with the one they sent me as it is identical to my previous one (left in some hotel bathroom...). Bring extra AA batteries on a long trip.