【Extended 4200FT Range & 2 Channel】With 4200FT impressive range, you can now have complete freedom while training your dog at the park, beach or in your backyard! 【4 Humanized Modes, Eliminate Bad Behavior Effectively】Our dog shock collar features 4 humane training modes: beep(standard), vibration(1-9 levels), safe shock(0-99 levels) and Shock Boost(10% higher).
eBay