AdTested & proven to stop escapes. Dogs stay within their boundaries 99.3% of the time. #1 Rated. Named the best GPS fence by Forbes and Gear of the Year by Popular Mechanics.

AdThe all-new Halo Collar 4: The safest GPS fence with unbeatable accuracy and tracking. New Halo Collar 4 with dual-band GPS ensures unmatched accuracy & fits dogs big and small