Esky EP-RB01 Waterproof Rechargeable Anti-bark/No Bark , Bark Control Collar (Vibration with Shock Correction) Automatically identifies the dogs bark, voice recognition minimizes false triggering; Sensitivity(High/Medium/Low bark)is user-adjustable according to your dog's barking and specific environments The 120 seconds dormancy design makes this product more safe and humanized The waterproof function provides customers more convenience (DO NOT immerse it into water or let dogs swim with it) Long-life rechargeable battery, charger, operating guide, and 1 Year warranty included Package Content: 1 Esky Rechargable Collar, 1 Belt, 2 Sets of probes(metal for large dogs, rubber for small ones), 1 Charger and charging cable, 1 Tester, 1 User Manual