Many wrote that the irrigator begins to leak over time. Like, water gets into the battery compartment. So far, nothing like this is happening.
Pros below:
Before that, there was an irrigator from Panasonic, but working from an outlet. It served for 5 years, then broke down, most likely due to the humid climate of my place of residence then. I doubted for a long time whether to take or not to take the same one, but on batteries, and took a chance. Everything is super. Firstly, 2700 mAh batteries See full review