COVONO Invisible Fence for Dogs,Underground Electric Dog Fence with 650 Ft Wire (in Ground Pet Containment System,IP66 Waterproof and Rechargeable Collar,Shock/Tone Correction)

COVER UP TO 3/4 ACRE: Comes with 650 feet boundary wire which is thicker and more flexible than the old version,cover up to 3/4 acre, expandable to more area with the purchase of additional wires. You can lay wires in any shape to keep your dog stay where you want it EFFECTIVE DOG TRAINING: The boundary is formed by the signal sent out from the wire by the transmitter. The receiver sends beep and shock as your dog approaches the boundary.The closer your dog goes, the more intense the shock will be, effectively train him to learn the off-limits places SUPPORT MULTIPLE RECEIVERS: The receiver is adjustable, waterproof and rechargeable,suitable for all kinds of dogs that weigh 10lbs-120lbs.With the purchase of additional compatible COVONO receivers, you can safely contain as many pets as you need at the same time MORE AMAZING FEATURES: Th