I am thankful and highly recommend this.

Did not use wire but read other reviews and installed 14ga wire. System works well as advertised. You must read and understand the directions. I finished up with master setting on 4 and collars for both dogs on 3. Perfect for my needs

Would highly recommend this dog training collar.

I installed this in June. Its now November and it had not failed once. The batteries last longer than stated, probably because my dog doesn't test it often. I installed it myself with an edge. The controller is in my garage and the wire meanders around about a half acre of gardens and pond. The training manual was super super helpful!!! My dog knows exactly where to go and not go.

I am glad I invested in this training collars.

Vibration is set for 2 I use it every day. Battery was charged one time two weeks ago , still 2/3 charged.