DT Systems H2O 1830 Plus 1 Mile Range

H2O 1800 PLUSa Digital Technology a Up to 1800 yard (1 mile) range a Expandable to 2-or 3-dog* system w/H2O Add-On collar units (sold separately) a 16 adjustable levels of Momentary (NICK) & continuous stimulations a Rechargeable waterproof collar/transmitter a Floating transmitter w/No-Slip/Soft-Grip rubber coating a Patented MAXX-Range(TM) Internal Antenna System a Gentle Touch(TM) System Extra Mild Stimulation a Built-in safety shut-offa 1830 PLUS: Jump & Rise stimulations; expandable up to 3 collars