Remote Training Collar: The PetSafe Pro Trainer Add-a-Dog Collar is compatible with the Pro Trainer Dog Trainer with Remote; supports double pairing for consistent multi-dog obedience training Durable, Long-Range Design: Waterproof replacement collar with adjustable fit and wide long-range signal for outdoor training and hiking gear setups Easy-to-Use Collar: Rechargeable with beep tone stimulation, vibration level mode, and 15 levels of static correction for safe off-lead encouragement of good behaviors Global Mission, Local Care: With U.S. roots and worldwide reach, PetSafe delivers vet- and trainer-recommended solutions and exceptional customer support to create fields of joy for pets 25 Years of Trust: Since 1998, PetSafe has created safe, innovative, and trusted products that bring joy, enhance pet lives, and support the lifelong bond between pets and their families