Before you use your Suunto Aqua Light for the first time, you need to pair it with a compatible device.
Keep the button pressed for 5 seconds to switch the headphones on and enter pairing mode.
Make sure Bluetooth is enabled on the device you want to pair your Suunto Aqua Light with.
Under the Bluetooth settings of the compatible device, open the list of nearby devices.
Find Suunto Aqua Light headphones on the list and pair them with the device.
When the pairing is successful, the headphones will play a sound and the LED light switches off.