Among the dozens of solutions for one of the most annoying consequences of the hot and humid Japanese summer, i.e. sweat stains in (mostly men's) armpits, Thanko's Electric Armpit Clip-on Cooler Fan is arguably the most Japanese! Faithful to the spirit of "chindogu", the weird inventions that make the rounds of the Internet every now and then, this clip-on mini-fan promises to keep your armpits cool and dry and stops the sweat from reaching your clothes.

The battery-operated (by 2 AAA batteries or connected to any cellphone battery pack by micro-USB) Thanko Electric Armpit Clip-on Cooler Fan is very easy to use: just clip it to the inside of your sleeve, switch it on, and then pick one of the three power levels. It's light enough (30g/1 oz) and silent enough to use even in a crowded office environment, and will keep working for 5-9 hours with a pair of batteries.

Its small size (60 x 65 x 15mm/2.3 x 2.5 x 0.5") will also allow you to use for your chest area: just clip it to the front of your shirt and it will spread its cooling air all over your upper body. And of course, for even more flexibility you can opt for a pair and have everything covered! Japanese ingenuity that goes well beyond a simple gag, the Thanko Electric Armpit Clip-on Cooler Fan is an effective and fun way to fight summer.

The Thanko Electric Armpit Clip-on Cooler Fan features: