This unusual fan attachment combats the sweat that can easily accumulate in the humid summer weather so many cities experience.
Designed by Japanese gadget company 'Thanko,' these battery operated fan attachments can be clipped onto the user's sleeve to simultaneously cool them down and dry off any sweat that may have accumulated. The fan can be easily charged with a USB and has three settings based on the user's needs. The odd gadget could be useful for people during the warm summer months, for people whose bodies respond by sweating when they have anxiety, or even for people with sweating disorders.
The armpit coolers can run between five to nine hours and are discreet enough that they could be useful for many individuals.