READ THE USER MANUAL BEFORE PURCHASE * The GPS Dog Wireless Fence System: INVIROX is delighted to introduce its latest innovation, offering a seamless solution for establishing a secure play area for your canine companion. With the straightforward activation of the GPS collar, the need for cumbersome wire installation is eliminated. The system incorporates advanced U-BLOX chip technology, ensuring a stable and precise signal transmission. * User-Friendly Wireless Dog Fence: Is characterized by its simplicity of operation, requiring no transmitter, remote control, monthly fees, SIM card, or subscription. Installation is effortless, enabling instantaneous boundary setting on the collar.