【HIGH PRECISION GPS DOG COLLAR FENCE SYSTEM】After up to 1,000 field tests by core users, the product has a 10% improvement in stability and reliability compared to other GPS dog fences on the market. HIIXHC electronic dog fences use satellite dishes to determine where your pet is. It is globally compatible and can receive signals from up to 87 satellites. This allows you to easily set up an electric fence boundary for your furry friend. You don't need to dig a hole to bury the transmitter, nor do you need to spend money on expensive traditional wooden fences. Wireless electronic fence effortlessly creates a happy park for your dog. 【UPGRADED NEW 2-IN-1 GPS DOG FENCE】 It creatively combines GPS dog fence and outdoor pet barrier to create the most stable 2-in-1 wireless dog fence system on the market today. You can use GPS positioning technology to keep your pet within the specified outdoor limits you set, and you can set pet barriers to keep your pet away from the landscape, swimming pool, trash can and other places you want them to avoid. When your dog leaves the GPS boundary or approaches a barrier, the buzzer, vibration and static training modes are automatically activated. 【HOW DOES IT WORK】You can customize the radius of your dog play area from 30 meters (33 yd) to 1000 meters (1094 yd), cover up to 761 acres. You can set up to 30 pet barriers (invisible 16-foot circles) within your GPS outdoor pet range. If your dog goes out of the set range, the vibration,shock and beeper will continue to work for 15 seconds, then pause for 18 seconds, then it will automatically repeat three times until the dog returns to the safe area. You need to set the range and barrier points according to your own needs before wearing it on the dog's neck, and if you do not need the barrier points, you can not set it.