Esky Rechargeable Dog Training Collar Waterproof LED Backlight Shock Collar for 1 Dog with Safe Beep Remote Dog Collar: Range up to 330 Yards for 1 Dog with water-resistant controller and collar receiver, easily way to train your dog in park or backyard. 4 Modes for Training: This dog training collar has 4 modes to choose, Static Shock/ Vibration/ Beep/ Light, 0-100 levels of vibration and static, 1 level of standard tone(Beep). Rechargeable Design: Both the collar and controller are rechargeable design, no need for extra batteries. Wildly Use: This Dog E-Collar can be used by Expert Trainers and First Time Pet Owners; you can use it to help correct barking, walking, sitting, aggression, and other behavioral obedience. Popular Seller on Amazon: Esky Patented Collar is Much Better Than That of Knock-offs. Coming with 30 Days Money Back Guarantee, 1 Year Replacement Warranty.