【Product Features】 1. True wireless remote control electronic fence; 2. Large remote control distance. With the transmitter as the center, the maximum remote control radius is 500 meters; 3. The signal strength of the transmitter is steplessly adjustable from 0 to 100, and the corresponding receiver distance is 20-500 meters. 4. the receiver is waterproof, rechargeable, economical and durable; 5. When the dog is out of the set range of activity, the receiver it wears will automatically start the training function, and remind the dog to return to the safe area by the first audible warning and then the electrostatic stimulus. 6. A transmitter can support an unlimited number of receivers to work at the same time without interference; 7. the transmitter with a digital display, visual display of the current signal strength gear; 8. Simple code operation and fast function setting.Please read the instructions before useProduct packaging:Package Include1 * Wireless Transmitter1/2/3 * Collar Receiver1/2/3 * Adjustable collar1 * 5V / 1A Charger1 * English ManualSpecial reminder: Please fix the transmitter at a distance of 1.5 meters from the ground without a metal wall, so as not to interfere with the wireless signal and affect the remote control distance.