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Here is a cool shirt that shows you current WiFi signal strength without you needing to open your laptop. The Wi-Fi Detector Shirt is an interactive shirt that shows signal strength for 802.11b or 802.11g networks. The animated decal is removable, so you can wash your shirt with no issues. The battery pack is in a small pocket sewn inside the shirt. Just bring 3 AAA batteries to get started.
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