Works easily with control button
Bought for nasal cleaning, came with nasal rinse salt packets.  have to open with scissors - instead of tear cut tab.  Easy to use. press and hold button to allow flow of content.  Release button (on bottom of bottle) and stops flow.<br /><br />Only complaint - not sure if can be cleaned in dish washer or at high temperature .... the button must have a metal spring in it.  Could rust if trying to sterilize it.<br /><br />Overall did the job very well and came with extra forehead temperature sensing sticker.  Guess it could be used to check temperature of water bottle with content.
Rating: 4 stars