This Add-On collar is compatible with any H2O PLUS system, and it can also replace any lost or damaged H2O 1800 series collar unit.  Available with Black, Blaze Orange, or Fluorscent Green collar belt.

Features

• Lightweight
• Waterproof
• 16 levels of intensity, adjustable from the transmitter
• Nick and Continuous Stimulations
• MAXX-Range Internal Antenna System
• Rechargeable Ni-MH Batteries
• Available with Black, Orange or Green Strap