Both the Transmitter and Receiver are waterproof and submersible.

The 1800 comes as a 1-dog system, but can be expanded to control up to 3 dogs by adding SportDOG Brand Add-A-Dog™ collars. With a long ¾ mile of range and the comfortable 'soft coat' Transmitter finish, this unit is a pleasure to handle. Dog Training Gear the way you'd design it.

• 3/4 Mile Range
  
• Receiver and Transmitter are waterproof and submersible
  
• Expands to 3 Dogs
  
• Up to 16 levels of continuous and momentary (nick) correction
  
• Tone only button
  
• Tone only for 1 sec, then stimulation, option.
  
• Replaceable Rechargeable NiMH Batteries in both transmitter and receiver
  
• Low battery indicators in both transmitter and receiver
  
• 40-80 hours ‘on time’ between charges
  
• Lanyard
  
• Belt Clip
  
• Lifetime Limited Warranty