- Extra collar receiver helps keep dogs safe in the yard
- For use with Smart Dog SD-2000 or SD-2050 Pet Fencing Systems
- Delivers electronic stimulation dogs quickly learn to avoid
- Battery-operated water-resistant receiver; collar fits necks 8 to 21 inches
- Receiver measures 2 by 1-1/4 by 1-1/2 inches; limited lifetime warranty
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