Training your dog doesnt have to be hard!? The PetSafe easy to use Dog Remote Trainer has been designed to assist you in training your dog. The Little Dog Remote has been specifically engineered for small-sized, medium-sized, or working dogs. The remote helps you control your pet without a lead in a range of up to 100 metres. By pushing a button, it will send a signal activating your dogs receiver collar. They will then receive a safe but annoying static stimulation which will remind them that they are misbehaving. There are 16 adjustable levels of static stimulation and with it’sadvanced digital display, it shows you exactly what level of static stimulation you are using.It also includes a tone-only option and uses four 3-volt lithium batteries which are included in your purchase. The batteries usually last between 1-2 months and you are notified when they are running low. The remote is waterproof which means it can be used during the colder weather.Your dog will be trained in a short amount of time!?Suitable for dogs 3.6kg and up.