Review on Befano Bottle Adapter: Compatible With Comotomo Bottles For Efficient Bottle Warming On-The-Go (Warmer NOT Included) by Jeff Wieczorek

This product lists the bottles you can use and how to do so, but even when we did it right, the bottle would leak due to the inside rubber part lapping with a groove. You constantly had to fix it and eventually we just stopped using the spectra bottle and bought an Avent bottle which seemed to work better. I then fully charged it and left it in the car TURNED OFF, but in the morning it was completely dead and ended up really screwing me over when trying to get a bottle ready while on the road. Ended up finding a place with a microwave and did it that way just to feed the baby and get him to finally relax. This is not reliable.