Here’s another pocket-friendly device ‘Ball Pen With Wi-Fi Detector’ from USBfever. This tiny ball pen will help you to choose the best place to get access to internet by hunting down Wi-Fi networks. It integrates an 802.11B and G Wi-Fi detector and strength meter in the form of 4 LEDs. All you have to do is push the button and the pen will automatically search for a nearby Wi-Fi hotspot. This Wi-Fi pen will set you back $13.99. [Product Page]
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