The 2-in-1 System of Wireless Dog Fence + Electric Dog Training Collar Intelligent 2-in-1 electronic wireless fence + Long-distance dog training is a new product in the pet electronics market. It innovatively combines the wireless dog fence and dog training functions, and boasts new appearance and comfortable feel. The product adopts 433MHz frequency with dual antenna transmission. The signal of the products using this technology is always stronger and more stable than other products, and features long transmission distance, strong penetration and diffraction ability, and fast signal synchronization of dog collar receiver. It can better protect the safety of your pet, and also allow the pet to get better training in a limited range. The product has passed Fcc certification. Using the latest technology, and the receiver will not electric shock the dog after the host is turned off. The transmitter has two modes: fence and dog training. When the DC 5V power supply is not connected, it is in the fence mode when it is turned on; when it is connected to the DC 5V power supply, the transmitter is turned on after it is turned off, and it is the mode used before turning off after it is turned on. The fence mode is centered on the transmitter, with 2000 feet, a total of 10 levels can be adjusted. In the fence mode, the intensity of static electric shock can be adjusted by turning the black knob, clockwise, the intensity of static electric shock will change from small to large; counterclockwise, the intensity of static electric shock will change from large to small.