Puppy Training Supplies Features: Collar Size: Able to fit small, medium, large dogs and puppies. 15 lbs or Larger. Durable and adjustable Nylon Collar Size Length from 14 to 24 inches long Includes one collar, Remote Transmitter can control up to two collars. (Extra collars are sold separately) Uses: Our collars can be used for a variety of purposes. Here are a few examples: Basic Dog Obedience, Hunting, Digging, Aggressive, Barking, Jumping up, and bolting Battery Type: Rechargeable Lithium Batteries for Collar Receiver and Remote Transmitter Water Capabilities: Water Resistant Collar Receiver Range: 330 Yards Tone/Vibration Options: 100 Levels of Vibration and 1 Level of Standard Tone Stimulation Levels: 100 Levels of Static Shock Power saving design with Automatic Standby and Memory Function Light Mode to assist seeing dog in low light conditions Easy to operate and ergonomic Transmitter Effective and safe training system with Auto-Protect Mode