First off, the seller shipped my remote collars very quickly and it was recieved in about a week and all communication was courteous. As for the product, the remote looks like a toy but works very well and the collars are made of good quality material. When it came, I charged up both the collars and committed to research how to use it effectively for training my dogs (Lab/Husky mix). The remotes have good range, allowing me to apply corrections to the dogs while they are in the back yard while I am in the house. There is a beep function, vibrate, and shock. The variable intensity for the shock function is great as while we are inside they require a lower level than when outside. Prior to using the collars, the dogs were uncontrollable when they were together, fighting with each other and ignoring all commands which they responded to most of the time when alone. Although this is not a magic wand, if you take the time to learn how to use it properly it will greatly expedite the training of your dogs and allow you to not have to chase them to get their attention. Great Buy!! I am definately gald I invested in this remote.