Now you no longer need to boot up your notebook PC just to find out whether you are near a Hot Spot! IOGEAR's little WiFi HotSpots Explorer is an RF wireless device that detects WiFi 802.11b and 802.11b/g signals. It can capture WiFi signals while avoiding interference from other devices such as 2.4GHz cordless telephones, A/V senders, microwave ovens and Bluetooth devices.