Review on O2COOL Sport Carabiner Misting Purple Heating, Cooling & Air Quality for Household Fans by Janet Bartling

As stated by another customer, they weren't well made and didn't hold an AA battery tight enough for the fan to work properly. I bought 4 of them (all are coming back) - one worked (albeit slowly and intermittently) the other three just needed shaking to get the battery to touch the connector and it worked. Why are they even on sale? They had to be taken off the shelf and sent back to the manufacturer.