Rechargeable Small Dog Training Collar with Remote Control

My 6 month old puppy kept ambushing our older dog and nipping her wanting to play , my older dog is too nervous to correct puppy or even to stand up for herself. I bought this collar to solve this problem and I only had to use it on the vibration level a few times (& also the beeper instead) along with a vocal word and this problem is solved over an afternoon!!!! Highly recommend. We didn’t need the shock level & don’t feel happy to use it. Especially as she was extremely upset when it was used on the vibration but after lots of reassurance her and the older dog have a much better relationship and life together. Very happy and pleased it was a good price too.