3-pin USB Charger for Groovypets Waterproof Rechargeable Remote Trainer Dog Training Shock Collar System Model T221 and bark Collar Model B600.

So far this is doing great charging my dogs collar. Nice bonus it charges the remote and collar at the same time so every three days we charge them both at night. I did not even notice at first it was a double prong so it was a really nice bonus for me and is so convienent. Would recommend and for the price it doesn't break the bank!

I have this exact collar and remote and this product does not fit to charge. As many others are saying also.

works well. I had to wait longer than I wanted... but the product works well

The charger that came with the collars (set of two) is a single output. For three devices. What were they thinking? Not. So add this. Now you have THREE outputs, and you can charge everything at the same time.

I purchased this as a replacement charger and was happy to see that the wall plug was included as when I purchased my dog collar unit it did not include that part. However, this is the second replacement charger I've purchased and this one did not fit either even though these are the replacements that come up when I do a search with the collar unit I purchased. I gave 3 stars because I'm once again stuck with a charger that doesn't work for my unit. It would be nice if these replacement chargers did indicate the definite units they replace rather than taking the 50/50 chance they will work since it is what shows when doing the search. The pictures make it very difficult to tell for sure what the prongs look like so you can't base your purchase off of them. Once I received the charger I could see that these were long skinny prongs and were not going to work for my unit. The company did ship the item quickly and it was packaged in the proper manner for a charger.

It is not compatible with the remote/ collar. It states that the product is but it is not at all.

It's a charger. It works LOL... Not really much more to say about it.

Doesn’t fit as advertised

It said it was for the dog collars but it wont charge them. It briefly worked for a minute and now it wont charge them.