Sportdog sporthunter x-series 825x 1/2 mile range 21 levels

FEATURES:
-Up to 1/2 mile range
-21 levels of stimulation
Waterproof

Other Features: 1/2 mile range, 21 instantly selectable static stimulation levels, low/medium stim ranges , tone & vibration options, rechargeable l-ion batteries expands to 3 dogs with add-a- collar system, waterproof, intuitive, no look operation lets you stay focused on your dog,