The SportDOG remote training collar is a smarter way to train and safeguard your dog in tough working environments. With a no-look dial and easy-press button trainer layout, you can deliver levels of static, vibration, or tone, based on the situation. The FieldSentinel 825 also features a quick-charge battery system that powers up in 2 hours. Waterproofing keeps the collar and remote operational. The adjustable collar strap provides a secure, comfortable fit through heavy brush, harsh weather, and all-day activity. Whether you're fine-tuning obedience or pushing endurance, this system supports safer, more informed training. Since 2003, SportDOG has been the trusted name for hunters, trainers, and outdoor dog owners who need gear that works as hard as their dogs do. Every product is built for rugged conditions and tested by real handlers in the field—not in labs. With a no-fluff approach, expert-developed training resources, and U.S.-based customer care, SportDOG delivers the clarity, control, and durability serious users demand. Whether you're hunting upland game or exploring off-leash, SportDOG gives you the confidence to train, contain, and communicate with your dog—no matter where the trail leads.