Electric Dog Fence Anti-Escape Collar with 2 Collars MUMU

General descriptionSafe, reliable, and humane, this hidden dog fence system is one of the most cost-effective solutions for pet containment. During installation, the wire can be pulled from the reel and installed underground, avoiding stones. Caution: The dog should not wear the collar for more than 12 hours a day. The electric shock should not last more than 20 seconds at a time. If your dog stays near the wire, it does not know how to back up or move away; please train it to move away from the wire.Technical specificationsWire length: 300 metersMinimum wire length: 50 metersMinimum circle diameter: 10 metersMaximum total wire length: 500 metersPackage included2x Waterproof and adjustable collars1x Remote transmitter1x Power connector (EU plug)1x 300-meter wire2x Small test lamps2x Screws2x Screw pullers4x Metal contact points20x Training flags1x English instruction manual