Suunto Spark User Guide
Resetting the headphones
In case you want to delete all your settings from Suunto Spark, you can reset the product. While Suunto Spark is in the charging case, press the button for 10 seconds. When the orange LED light blinks, the reset is successful.
NOTE:
After the reset, the Bluetooth pairing records are deleted from the headphones. When you want to use the headphones again, you have to start the pairing process from the beginning. See Pairing.