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Dogtra PATHFINDER GPS Tracking & Dog Training Collar 9-Mile 21-Dog Expandable Waterproof - Walmart.com
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Amazon.com: Dogtra Pathfinder TRX Additional Receiver 9-Mile 21-Dog Expandable Waterproof Smartphone GPS-Only Tracking Collar with 2-Second Update Rate, No Subscription Fee, Free Satellite Map : Pet Supplies
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