The Dogtra E-Fence 3500 is an effective underground containment system with rechargeable 3-collar for mild to stubborn dogs. Set custom boundaries around your property that allwos your dog to be safe in your yard.
8 intensity levels on the receover collar to control individual dog stimulation needs
Non-stimulating high performance pager vibration warning before stimulation
Wire breakage light with audible warning tone
Long range signal for up to 40 acre coverage
Advanced filtering system to prevent interference form outside sources
Expandable to multiple dogs
2 hour rapid charger Lithium Polymer batteries