• You can share the headband but we do not recommend you to share your account so that the data in your account could reflect how your are performing and going better.
• If the headband is already paired with your app, press the button and hold it till the light flashes rapidly, which means it's ready to pair. Or just close the app and the headband will be ready to pair as well.
• Sign up another account and tap the icon on the upper right corner of the screen in the app and connect the headband with the new account as the instruction says.