The first complete and truly innovative dog training system on the market today. This e-collar functions with the help of a clicker, simple training tool that aids in shaping your dog's behavior. This device also helps in building new skills and further more enhance your relation with your dog. It is a fully waterproof receiver collar and a reduced size receiver with a detachable collar strap. It uses Conductive Plastic Contacts points, an ergonomically alternative for sensitive skin or for dogs allergic to steel contacts. The transmitter has a Nick and pulsating nick stimulation with a precise stimulation level (0-100) which the owner can adjust to his or her preferred training and you can expand your training up to 2 dogs by purchasing an additional collar. Both transmitter and collar uses Lithium batteries (CR2032) and has a range coverage of up 100 yards. This best suited for small dogs weighing 10-14 lbs.