For dogs 5 pounds and up Waterproof receiver collar fits neck sizes 6-28 inches 5 adjustable levels of static correction Tone-only mode alerts your pet with a beep Expandable up to 10 acres with additional wire (not included)

YardMax Rechargeable In-Ground Fence maximizes the amount of yard space for your pet to play freely in. PetSafe's most reliable and advanced in-ground fence system keeps your pet in your yard with a transmitter and rechargeable collar. You'll bury wires in your yard to set your pet's boundaries. When your pet nears the boundary, the collar will give a warning beep, followed by a static correction to remind your pet to stay within the boundaries. Your pet will be enjoying greater yard freedom in no time! In YardMax Mode, the Warning Zone begins on the other side of the boundary instead of within your yard, giving your pet more yard space. The Boundary Zone continues past the Warning Zone indefinitely, so your pet can't run past the Boundary Zone. Your pet will receive corrections from the collar until he returns to the Pet Area, or until the safety time-out activates after 15 seconds. This helps your pet learn exactly where his boundaries are. WiseWire� 16 AWG PE45 is a heavy duty, high-strength, flexible, copper-clad steel wire. A custom grade steel core, metallurgically bonded with a copper cladding, that is uniform and continuous, creating a bi-metal conductor that acts as one and is corrosion resistant. Special annealing and drawing processes are performed during the cladding process to achieve desired engineered benefits of strength, flexibility, reliability and durability. Insulation is a 45 mil, high-density, high molecular weight polyethylene (HMWPE/HDPE). WiseWire's insulation is engineered to provide superior water blocking and abrasion properties against underground elements and helps prevent accidental breaks caused by rocks in shifting soil conditions, dig-ins, and corrosion. System includes: Transmitter with mounting hardware and power adapter, YardMax rechargeable receiver with adjustable collar fits neck sizes 6-28 inches, Surge protector, Receiver collar charger, Short and long contact points, Operating and training guide, 500 feet of 16-gauge WiseWire�, 50 training flags, Waterproof splice capsules and wire nuts, and Test light tool and contact point wrench.