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. The system retains settings post-restart, and the collar operates at a harmless 3.7V voltage. Covering Range Of Up to 999 Yards: The wireless system boasts a 99-level adjustable boundary, affording you the flexibility to establish a spacious and secure play area for your dog, instilling peace of mind. The GPS accuracy stands at a remarkable 1-2 yards, with a marginal decrease in densely wooded areas. Safety Design & Overcorrection Protection: Ensures a secure and user-friendly experience. Featuring Tone + Vibration/Tone + Stimuli correction modes. Individual correction levels can be set. The system issues warnings for a limited duration, preventing overstimulation and fostering a safer training environment. Waterproof & Rechargeable: Collar is IPX7-rated, facilitating usage in diverse environments without concern for weather conditions. The collar's high-capacity, rechargeable battery eliminates additional costs and provides 24 hours of continuous use. The TPU strap is fully adjustable, offering a range of 7 to 22.5 inches.