About This HALF-MILE RANGE FOR LONG-RANGE WORKING DOGS AND FIELD HUNTERS - The SportHunter 825X provides up to 1/2 mile (800+ yards line-of-sight) of remote range - the entry point to SportDOG's long-range SportHunter family. 21 LEVELS OF STATIC STIMULATION - Roll the dial through 21 precisely graduated static levels to find the exact correction intensity your dog responds to. Tone and vibration on the same dial for distraction-free one-hand operation. DRYTEK WATERPROOF AND SUBMERSIBLE TO 25 FEET - Remote and collar both waterproof and submersible to 25 feet using DryTek technology. Built for retrievers running water blinds, waterfowl dogs, and all-weather upland work. RECHARGEABLE - 2-HOUR CHARGE, 50-70 HOURS USE - Both remote and collar run 50-70 hours per charge and charge fully in 2 hours. Low battery indicators on both units. Never be interrupted mid-session by a dead battery. EXPANDABLE TO 3 DOGS FROM ONE REMOTE - Add up to 2 more dogs using Add-A-Dog collars (SDR-AXF, sold separately). For close-working dogs, see the FieldTrainer 425X (B07DZBN74T). Overview Pattern : Dog Color : Grey Material : Nylon Brand : SportDOG Closure Type : Buckle