I've got a bark collar you can have for the cost of shipping. It's just a cheap one and has one level of punishment I think- which is pretty strong so wouldn't be good for a small dog.
Mine shut up however once I started kenneling it consistently after walks etc when we've just got home for a couple of hours with us still around; hence why I never really used this collar. If somebody has to leave while he's in the kennel hat works good too because he thinks he's alone when he hears the car going.
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