I had bought it several years ago, a similar water-jet ... but after 3 years and after multiple repair the cord, repairs made by my husband, I bought another system much less efficient , needs to be recharged regularly, both in water (must complete 2 or 3 times the small tank for perfect cleaning, and power rapidly decreases, thus recharging the battery ...) The latter, I prevail in vacation. Eventually I bought this model almost identical, and really, there is no better: a reservoir of 600 ml, for perfect cleaning, power adjustable jet, complete with 4 tips for other family members, operating on AC power with plug! The cord is always identical to the first model, no improvement, and that is unfortunate because this is the weak point of this product. Nevertheless, I put 5 * for I am pleased to have once again on hand a quality device that meets my needs. No need to look elsewhere ...