Pefilos Remote Training Collar - 500 Yard (1420 FT) Range - Collar Fits Medium or Large Dogs - Choose from Tone, Vibration, or 8 Levels of Static Stimulation for Training Off Leash Dogs, Black

The remote control radius distance is up to 1420FT, train your dog in the park or backyard, use this dog training collar to correct the dog's barking, walking, traction training, sitting, aggression and other behaviors.
Waterproof Shockproof Collars with Soft Contact Points. One remote transmitter can control up to 3 collar receivers; train your dog under the control of the trainer, no more yelling at your dog
These IP67 waterproof dog training collar receivers can be used to train your dog in various weather conditions; unlike other receivers with metal contacts, the dog shockproof collar receiver's contacts is soft silicone (to protect your dog's skin, place the soft silicone point on the receiver and leave some extra length (about 2 fingers wide) when you place it on the dog's neck) ( Note: The transmitter is not waterproof)
4 Modes: LED light, vibration, shock and sound modes are optional; LED light mode can help you locate your dog in dark environment, dusk, dense fog conditions; Vibration and static shock modes are adjustable from 0-8 levels ;Sound mode will sound an audible warning; NOTE: Treat your dog as a friend, we recommend that you use the static shock mode as your last resort when using this remote training collar, it is highly recommended that you use the vibration training mode and do not use static Shock to train puppies
The dog collar length can be adjusted from 5 inches to 26 inches; it is suitable for medium-large dogs