Find the best portable fan of 2017!! Iriver vs. Onan Korea vs. Fromby

What is the best portable fan of 2017!? Danawa popular, tested the 1st to 3rd most sold products! More details here! http://news.danawa.com/view?boardSeq=... Onan Korea Lumena N9-FAN http://prod.danawa.com/info/?pcode=50... Prombi 2017 portable fan Ice http://prod.danawa.com/info/?pcode=51... iriver BF-C26 http://prod.danawa.com/info/?pcode=51...