The product is like new as we only used it a handful of times with one of our dogs. This is a setup for one or two dogs and was sold as a set. The additional receiver box is still sealed. I am also including TWO Sparky Pet Co. ECollar Replacement straps with Bungee that makes the collar easy to take on and off your dog. (The original unit comes with buckle collars.) This also includes a charger with a splitter to charge both units at once.