Feature: 1. Complete wireless electronic pet fence system is safe and reliable for pet training, supporting outdoor use 2. The control range of circular signal region based on transmitter and remote control center can be up to 300m 3. If the dog is outside the remote control range, it will automatically start the warning tone and electrostatic shock mode 4. 5 different distance transmitter signals represent the remote range 5. Transmitter and receiver which do not need to use the code can receive signal for normal operation after booting Specification: The electronic wireless pet fence system is reliable and safe for pet training. It is completely out of the hassle of cabling and is very convenient to establish safe areas for pet behavior. Centered around the transmitter, the remote control can reach a radius of up to 300 meters and cover up to 28 hectares. In this large space, your dog can play freely and safely without worrying about their limited activities or getting lost. As a