PetSafe Lite Remote Dog Trainer Behavior Training for Small Dogs 300 Yard RangePetSafe 300 Yard Lite Dog Remote Trainer is designed for off leash dog behavior training at home or in the backyard. Ideal for small, shy, or timid dogs, this lightweight training system helps correct lunging, digging, chewing, and other unwanted behaviors using tone, vibration, or 15 adjustable static levels. The waterproof remote and collar recharge in 2 hours and provide up to 40 hours of battery life. Fits dogs 8 lbs and up with neck sizes 6 to 23