These additional Receiver/Collars allow you to expand your Dogtra EDGE RT remote trainer to a two or even a three dog system. These collars a compatible only with the Dogtra Edge RT and are available with a Blue or Orange strap. Features: Expands the Edge RT to up to a three-dog system 'Nick' and 'Constant' stimulation along with a non-stimulating pager/vibration Rechargeable 2-hour rapid-charge Lithium Polymer battery Low to High power stimulation Fully waterproof Intensity selection dial stimulation level (1-8) 1-mile range Extendable contact points (5/8" to 3/4") 2 Year Limited Lifetime Warranty Power - Low to High Lithium Polymer Batteries Includes: Receiver/Collar (1) - Additional Receivers sold separately.
5/8"contact points, which are standard-and contact point washers(included) that allows the points to be extended to 3/4" Splitter cable