HUMANE DESIGN: Features a shockless and prongless collar design with smooth surface for comfortable, gentle training without causing discomfort to your dog EXTENDED RANGE: 1100 yards control range allows for effective training both indoors and outdoors, with waterproof construction for all-weather use LONG-LASTING BATTERY: Dual charging cables for receiver and remote provide up to 20 days of battery life, fitting dogs from 5-120 lbs with neck sizes 8-27 inches TRAINING MODES: Features 9 vibration levels and 9 beep tones with security lock design to prevent accidental activation, plus non-slip grip remote with wrist band Transform your dog training experience with PaiPaitek's innovative no-shock replacement receiver collars. This set includes 1 receivers compatible with the PD519V model, allowing you to train multiple dogs simultaneously using a single remote control. With an impressive 1100-yard range, you can effectively train your pets both indoors and outdoors. The collar features a smooth, prong-free design that sits comfortably on your dog's neck, suitable for breeds from 5 to 120 pounds with neck sizes between 8 to 27 inches. The system offers 9 levels of vibration and 9 different beep tones to effectively capture your dog's attention. The waterproof construction ensures reliable performance in wet conditions, while the dual charging system provides up to 20 days of battery life. Safety features include a security lock to prevent accidental activation, and the remote's ergonomic design includes silicone grips for comfortable handling. A convenient wrist strap is included for easy portability during training sessions.