Factory the choices size works you cry There's KNX 1971 husband, but he's all over me when I walk or boyfriend can walk him and Head collars, harnesses, slip chains, martingales and pokey styles collars, little information! How do we choose the RIGHT collar to train our dog? case you haven't noticed, trainer recommendations differ widely when it comes to dog training collars. One advise a head halter, another prefer a classic slip A client came to me the other day, for help introducing a new puppy to her older, cranky-ish male terrier. She was terrified of the dogs meeting each other, fearful the older dog would fight first and ask questions later. I realized at the end of the session, that I had walked her through what Training is what a dog knows. Obedience is a dog doing what he knows, when he'd rather not. Most dogs I know are trained. Very few are obedient. Most owners train their dogs. Very few know the difference between dog training vs obedience and how to turn training into true obedience. Here's approach, from 20 years of dog training, I've yet to find any subject more provocative that that of Power, Hierarchy and Dominance and its place dog training. It's a lightening rod that divides dog trainers into one camp or the other: those that train to achieve hierarchical dominance over their dog, and those that feel. I got a final version of the SD 425 right around the beginning of hunting 2012. While I had been looking forward to this collar coming out, it really was not something that I planned to use for myself and I figured after a short few tests I would be done with it. I am still using it several months later and it is now one of favorite collars. It's truck right now and I use it almost every day. I have used it on for every duck hunt this year and I expect to keep using it around the house for some time. The 425 is the replacement for the extremely popular SD 400. This version fixes several things that the 400 was missing and brings it line with the new generation SportDOG collars. The new features of the 425 include: Multi dog modes that include Tone or Vibration on the dial, allowing you to use tone or vibration when a two or three dog set up The 425 is a great collar for obedience work, retrievers and flushers. It's going to quickly become one of our best sellers its category. While the 400 has been our best selling collar under $200 for the last 8 or 9 years, I never really found a use for it. The 425 has changed that for me. It is awesome system for folks that 't need a lot of range but want a full featured system for working close to medium range dogs. Transcript from 's Video: The SD-425 is one of the smallest of the SportDOG collars that's out there, both transmitter and collar. It's designed for a pretty wide range of dogs. It's a 500 yard system and it covers a lot of different features for a pretty small unit. The size of it is a big deal. It's very comfortable your hand. The original 400 units I didn't care for as much. They didn't fit hand as well. But the 425, they've made a slight change to it and it's just a little bit more comfortable. They've also made a change to the antenna. It's a little prettier design than what we had on the 400. The 425 features vibe tone on the dial. the first position on your dial you have a V T. depending on which mode you are you can have both vibration and tone at the same time operating off of different buttons. this setup we have tone on the side and then we have vibe on the front buttons. To get a stimulation, we then move up. We still have tone on the side, but now we are stimming on the front buttons. To move back to vibration simply turn your dial back to V T and you've got vibration again. The idea behind this is that you can have a lot more options, especially a multi-dog mode. If you set this up a two