Review on 2-Pack O2COOL Deluxe Battery Powered Necklace Fans – Optimal Performance and Convenience by Angela Jones

We bought 4 of these for use at Disney World in August. The fan itself works well and has decent battery life. However, after a few hours, the lace worn around the neck came off completely. This happened with all 4 units, 2 of which were worn by children, 2 others were worn by adults. Because of this, adults had to use the fans mainly as portable fans, and the strings for children were very short. At the end of the journey, the fans could no longer be worn around the neck. Because of this, I would suggest taking the blocks apart before using them and replacing them with a much stronger cord.