WiFi Rechargeable Pet Fence uses the latest digitally encoded WiFi signal technology used in advanced wireless communications with the 802.15 WiFi protocol. Unlike other fencing technology, the Wire-Free Smart Station and Pet Link collar are both connected by Transceivers - highly integrated signal chips that constantly links the distance between your dog and the Smart Station. Wire-Free Pet Fence intelligently tracks the location of your dog at all times, reminding your pet to respect the established boundary safe area, all while communicating critical safety information back to you.
http://www.petstreetmall.com/PIF-300.aspxWireless Dog Fence and with FREE SHIPPING on the Petsafe Wireless Fence.
