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 longIncludes 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 boltingBattery Type: Rechargeable Lithium Batteries for Collar Receiver and Remote TransmitterWater Capabilities: Rain Resistant Collar Receiver Range: 300meters or 330 YardsTone/Vibration Options: 100 Levels of Vibration and 1 Level of Standard ToneStimulation Levels: 100 Levels of Static ShockPower saving design with Automatic Standby and Memory Function Light Mode to assist seeing dog in low light conditionsEasy to operate and ergonomic Transmitter Effective and safe training system with Auto-Protect ModeLCD Display featuring a Blue Back Light for nighttime usage Quick and straightforward pairing process