Nexersys N3 Elite: The Personal Boxing Trainer for Your Home. Challenging HIIT Workouts that Builds Confidence with Cardio, Technique, Gaming & Core Workouts. Interactive Fitness on Microsoft PlayFab.Your Personal Trainer & Sparring Partner N3 Elite delivers an interactive boxing experience through personalized High intensity interval training with 3D mitts and sparring partners. Interactive Fitness Learn striking techniques and stay engaged through an entire workout with a 3D animated mitts partner and fight with a 3D sparring partner. Personalize Your Training Create your own custom profile and select between round types, training durations, and