NEW TECHNOLOGY: Wireless dog fence systems combine the functions of a wireless dog fence and a remote training collar. After powering on, it connects automatically. It uses the latest and most up-to-date technology for more stable and precise signal transmission. It helps you train your pet safely and develop good habits. Stable and precise signal: The product's latest wireless signal is more stable. As long as you are outdoors, regardless of the terrain, you can rest assured. The transmitter can be connected to multiple collars and works with optional devices. The signal is stable and the synchronization speed is fast. Don't worry if your dog suddenly receives an electric shock. Signal range up to 300 meters. When your dog is out of range, the receiver collar emits a warning tone followed by a gentle tone. Attractive design: The transmitter is ergonomically designed, easy to wear, and the transmitter design is more interesting. The large display is more intuitive and simple. The