I tot the size is big, but its comes so small. try it for the first attempt is my dog scare of it. But after afew times, he seems like immune to the sound. Now not tat he scare of.

We have had a lot of success with this product. The one dog has acclimated to the beep feature and if it is on the other dog she will still come. The shock feature works really well with good responsiveness of the dogs at all.

This is one of the best training collars we have owned. The battery life is amazing. We have had it for almost 3 weeks and still have not charged the collar or remote.

Great training device for our 1 year old puppy.

Does the job. They catch on to the beep though and it eventually becomes useless. Vibration is super effective and I haven’t even had to charge once since I got it several weeks ago.

The delivery speed is very fast, the seller is especially careful to guide, the effect is particularly good, now the dog does not bark when using this, and can sleep well in the morning.