This is a 100m Lite Remote Trainer (PetSafe). Using the 100 Metre Remote Trainer you can easily improve the communication between you and your dog. The Remote sends a signal activating your dog?s training collar. With three training options, tone, vibration and static stimulation, you can ensure you will have a well trained dog in a short amount of time. The 100 Metre Remote Trainer is particularly suited for small to medium dogs - Great for around the house training. The PetSafe Lite remote trainer is designed specifically for dogs with a sensitive or timid personality. The stimulation levels are very gentle even when increasing to higher levels.