instecho Dog Training Collar, 100% Rainproof Rechargeable Electronic Remote Dog Shock Collar 330 Yards Beep/Vibrating/Shock Electric E-Collar PET CAREE Dog Training Collar Collar Size: Able to fit small, medium and large dogs,15lbs or Larger. Durable and adjustable Nylon Collar Size Length from 15 to 22 inches long Includes one collar, Remote Transmitter can control up to two collars. (Extra collars are sold separately) Rechargeable Lithium Batteries for Collar Receiver and Remote Transmitter Water Capabilities: Water Resistant Collar Receiverafter the rubber coverd Range: 330 Yards Tone/Vibration Options: 100 Levels of Vibration and 1 Level of Standard Tone Stimulation Levels: 100 Levels of Static Shock