GPS wireless fence that handles 37 acres and a 100lb Shepherd — when it does not glitch indoors

<p>Custom boundary shapes beyond basic circles for irregular properties. Three correction modes (tone/vibrate/shock) with adjustable levels keep training humane. IPX7 waterproof collar survives rain, puddles, and creek crossings. Rechargeable battery with decent life for all-day patrols. Works on large</p>