Pet Electronic Fence Training Dog Barking StopperOverview: 1. With the transmitter as the center, the maximum long range radius is 492 feet; the signal strength of the transmitter is steplessly adjustable from 0 100, corresponding to the receiving distance of 0 492ft. The transmitter has a digital display that can visually display the current signal strength gear. 2. The receiver is waterproof, rechargeable and economical. Therefore, it is very suitable for use in rainy days. Your dog can even wear