I recently purchased the Dog Care Dog Training Collar System model TC01 (color: Blue). A little history about my dog. His name is Blue and we adopted him from a shelter a few months ago. We believe he was mistreated (beaten/left alone) by a man in his past, because he is afraid/skiddish around men. After he got adjusted to his new home and family, we quickly learned that he has really bad separation anxiety (especially from me). Its so bad that if I steped outside the front door (even though he could see me through the storm door and the long skinny window adjacent to the front door) he would jumps, paw, dig, bark and whine wanting/trying to get out. He eventually learned how to turn the handle and open the storm door. One time he opened the storm door, ran out of the house, darted across the street and almost got hit by a car. He has also destroyed things in my house including, my wood blinds on the window adjacent to the front door, the paint on wall and front door from scratching to get out, my bedroom carpet at the threshold when my little one accidentally locked him in, a few kid toys and his crate. He bent the heck out of his metal crate trying to escape (and succeded) when we put him in there when we left the house. We had to stop crating him due to fear of him getting hurt trying to excape. Unfortunately, he continued to destroy things around the house when we were gone so we had to get an extra strong heavy duty crate. In addition to destroying things, he also had some very bad manners. The one that really made me mad was him stealing food from my little ones high chair tray while she is eating. I was at my wits end with this dog and ready to take him back to the shelter.Before we got this training collar, I initially looked into getting a dog trainer. It was extremely expensive, so I wanted to exhaust all other possibilities first. I only wanted to go that route as a last resort. I did some research before I decided on purchasing the Dog Care Dog Traning Collar. OMG what a life saver. Blue has been responding perfectly and is well on his way to becoming a well mannered dog. If he does something bad like jump or scratch at the front door, or take food off my little ones high chair, all I have to do is either vibrate him or beep him and he immediatly stops. We are still working with him to completely break him of all of his bad habits, but we are making huge progress. I could not be happier. This collar says what it does and in my opinion is worth every penny I paid plus some.These are the pros:• affordably priced• receiver is waterproof (I put it in the tub to test it out)• different modes for training including beep, vibration, and shock• 99 levels shock intensity (After 2 shocks at level 50 which made him yelp he now responds immediately to the beep or vibration)• Ability to have multiple (9) dogs using only 1 remote even though will never have 9 dogs at once.• Ability to lock the remote keypad from accidental touch/shock while in your pocket or if your little one gets ahold of it• Shows the battery levels of both the receiver and remote on LCD display (both the receiver and remote batteries last a LONG time!!!)• Max 4 seconds of shock safety feature in case the button gets stuck or held down my my little one on accident.• Automatic sleep mode to save battery life (the batteries in both the remote and receiver lasts for days without charging because of the sleep mode)• Rechargeable!• 330 yard working range (I have used it about 150 yards and works perfectly)There are only 2 negative things I could say about this training collar. The remote and receivers are big and bulky. The remote is 7 inches long and the receiver sticks out about 3 inches from the dogs neck. The other negative thing is that the receiver does not have an on/off switch. Both are not a huge deal and would definitely not prevent me from purchasing another one in the future.Overall, this system is awesome! You will not regret purchasing one. As a bonus, the seller offers a free extra receiver collar in exchange for the buyers review. Kudos to the seller using a great marketing strategy to get people to write reviews on Amazon. Guess they are really that confident about how good their product really is! And they have every right to be. Please note: this is a totally honest review. I will update this review in the future if anything changes.