The Ion Chill Mini cooler is a great little refrigeration unit that  is great to use while traveling or as a cooler to keep at your desk while at work. The cooler comers with all the needed cables to use in either your car and the office and it is super easy to change to required adapter.  This cooler is small (holds about 4 to 6 cans) so if you require anything larger, so please keep that in mind before purchasing. This would be a great product for storing breast milk as it is super small as it really is so easy to carry it around. 
This is a great little cooler that I thoroughly recommend.