Gladsmile ZF550 GPS Wireless Dog Fence for 2 Dogs, Custom or Circular Boundary

Set up an outdoor boundary for your dogs at home, on a farm, or at a campsite with the Gladsmile ZF550 GPS wireless fence. Choose a circular zone for a straightforward layout or a customizable boundary to better match an irregular yard. GPS-based setup creates a virtual fence without buried wires.

The system offers three correction modes—beep, vibration, and static correction—with adjustable levels. Its rechargeable collar is made for outdoor use, and the portable design lets you use the system in different outdoor spaces.

Fit and sizing

The adjustable collar fits dogs weighing 15–120 lbs and adjusts to a length of up to 28 inches. That range helps accommodate dogs of different sizes, while the two-dog system is intended for households training two dogs with a shared outdoor boundary. Introduce boundary training with the beep or vibration mode and select levels appropriate for your dog.

Choose the custom mode for an irregular yard or terrain, or circular mode for a simpler boundary layout. The two modes are alternatives rather than settings to use simultaneously. If you move the training area, reset the parameters before use so the boundary is configured for the new location.

Why it’s worth it

A wireless GPS boundary offers a different approach from a fence that requires buried wire: it creates a virtual outdoor zone without wire installation. The custom mode is useful when a property does not fit a simple circle, while circular mode provides a more direct setup for open areas. The boundary range is adjustable from 49 ft to 6,561 ft, giving you room to set a zone for a smaller yard or a more expansive property.

The correction choices make it possible to begin with a beep or vibration and adjust the level, with static correction also available. For a practical training session, establish the selected boundary and use the mode and level suited to your dog. The collar’s IPX7 waterproof protection supports use around wet grass and in rainy outdoor conditions.

Portability is another useful part of the design. Take the system along for camping or temporary outdoor use, then configure it for the activity area. The auto-memory feature saves the last center point and settings, so regular use in the same training area does not require setting them again each time. It suits you if you want a rechargeable, no-subscription GPS fence with customizable boundary options for two dogs.

Spec sheet

• Brand: Gladsmile
• Model: ZF550
• Type: GPS wireless dog fence system
• Dog capacity: 2 dogs
• Boundary modes: Custom and circular
• Adjustable boundary range: 49 ft to 6,561 ft
• Correction modes: Beep (levels 1–5), vibration (levels 0–9), and static correction (levels 0–9)
• Collar fit: Dogs weighing 15–120 lbs, adjustable up to 28 inches
• Water protection: IPX7
• Power: Rechargeable battery, up to 40 hours per charge
• Warranty: 1 year

Should you buy it?

Choose the Gladsmile ZF550 if you need a portable outdoor boundary for two dogs and want to tailor its shape to the space. Its custom and circular modes cover different yard layouts, while the adjustable range, three correction options, and rechargeable, waterproof collar support use across everyday outdoor areas and trips.