Changing Tonal Arm Batteries
The arms of Tonal require four AAA batteries — two per arm — and an active wireless connection in order to function properly. This allows the arm to unlock and rotate when you press the rotate button.
Tonal notifies you when the battery levels are low. Change the batteries immediately when notified:
You can also check the battery levels in the Arms and Track settings:
Before changing Tonal arm batteries- Make sure to discharge static in order to prevent any shocks. To dissipate static from your body, hold the arm of Tonal while changing batteries.