Finding a decent Wi-Fi signal can be a bit of hit and miss affair, sometimes it can be strong in places and few feet to the side, it can be a lot weaker. Therefore, this T Shirt takes the strain out of attempting to find a nice and clear signal; the only issue is that everyone else will see that the signal is strong from animated graphic on the front of your T Shirt unless you are walking long with head hung low. It is good though because this is not the sort of clothing that everyone will wear, so your fellow geeks will appreciate your signals!
These are the features for the brilliant Wi-Fi signal detecting t shirt:
•Glowing animated shirt dynamically displays the current Wi-Fi signal strength.
•Shows signal strength for 802.11b or 802.11g
•Black 100% Cotton T-Shirt
•Animated Decal is Removable (with hook and loop fasteners) for Easy Washing
•Battery Pack is concealed in a Small Pocket Sewn inside the Shirt
•Runs for hours off three AAA Batteries (not included)
1. Carefully peel animated decal from front of T-Shirt
2. Unplug ribbon connector behind decal and remove decal
3. Unplug battery pack and remove it
4. You can leave the ribbon cable inside the shirt
5. Machine washes gentle cycle on cold
6. Hang to dry
Please Note: If you plug the connector into the battery pack backwards the shirt will not animate properly. It will not damage the shirt. Simply reverse the connector.
Priced at $19.99
Source [Think Geek]