3 of 10Image
Wi-Fi detection hats
Brando Workshop has released the "Wi-Fi Detection Cap," clothing which is able to seek out 802.11 b/g/n signals. If you're looking for a Wi-Fi connection in a public place, then two LED lights on the cap will show you network strength and availability -- although of course you will have to take it off to check.
The hat comes in three colors, two designs, and requires CR2032 batteries. The Wi-Fi Detection Cap costs $14 - $18.