The Worlds first anywhere, anytime personal trainer.

Using the Keychain Trainer is simple: plug it into any internet-connected computer, and you’re instantly connected to the first-ever technology behind NextFit, with dozens of coaches, thousands of exercises, and millions of possible workouts.
Each new session is automatically loaded to your Keychain Trainer for you. You just put on the headphones, press play on the Keychain Trainer, and listen as your trainer guides you to your fitness goals.
Since it’s based on exclusive “Dynamic Media Production” technology, your Keychain Trainer creates each workout instantly, and adapts each day’s session based on whether you’re working out at home or at the gym, or whether you thought the last session was too easy or too difficult.
Put simply, you have to hear it to believe it; it’s like having a fitness DVD that’s different every time you play it. And this technology is patent-pending and exclusive to NextFit.