Buttons
Suunto Sonic has three buttons you can use to switch song, adjust volume and answer or end phone calls.

- multifunction button
-
+ and power button
-
– button
Switching on/off the device
- keep the + button pressed for 3 seconds to switch the device on or off
Listening to audio
press the multifunction button once to start or stop playing the audio
press the multifunction button twice to skip to the next track
press the multifunction button three times to return to the previous track
press the + button to increase volume
press the – button to decrease volume
keep the multifunction button and the + button pressed simultaneously for 3 seconds to switch sound mode
Making a phone call
press the multifunction button once to answer or end a call
press the + button to increase volume
press the – button to decrease volume
Adjusting settings when the device is on
keep the + and – buttons pressed simultaneously for 3 seconds to enter pairing mode
in pairing mode, keep the multifunction button and the + button pressed simultaneously for 3 seconds to enable dual device connection
Microphone
Your Suunto Sonic comes with dual microphone and clear voice call (cVc) noise reduction technology. These features guarantee good voice quality of your phone calls even in noisy conditions.
You find the microphones on the right side of the headphones:

- dual microphone
CAUTION:
Do not wash the microphone holes directly with water or volatile liquids, as they may affect the performance of the microphone.
Bluetooth connectivity
Your Suunto Sonic headphones communicate with the compatible devices via Bluetooth. You can pair the product with any Bluetooth devices capable of playing audio, such as mobile phones, smart watches, tablets, etc. For information on how to pair the headphones with a compatible device, see Pairing.
You can connect your headphones to two Bluetooth devices at the same time. See Dual device connection.
If you want to disconnect the headphones and the compatible device, you can do so in the Bluetooth settings of the paired device. You have two options. To keep the headphones on the Bluetooth list of the paired device and ensure quick reconnection, simply disconnect the devices. If you want to completely remove the headphones from the Bluetooth list of the paired device, delete the headphones from the list of Bluetooth connections. In this case, if you want to use the headphones and the Bluetooth device again, you have to start pairing from the beginning.
NOTE:
If you move outside of the Bluetooth connection range for more than 3 minutes while wearing Suunto Sonic, the headphones and the paired device disconnect.
When the Bluetooth connection between the headphones and the compatible device is lost, Suunto Sonic automatically enters standby mode to save power. When the headphones are in standby mode, press any button to quickly reconnect to the Bluetooth device.
Pairing
Before you use your Suunto Sonic for the first time, you need to pair it with a compatible device.
If Suunto Sonic is not switched on:
Keep the + button pressed. After 3 seconds, Suunto Sonic switches on. Do not release the button.
Keep the + button pressed for 2 more seconds to enter pairing mode. When the LED light alternately flashes red and white, the product is ready for pairing.
Make sure Bluetooth is enabled on the device you want to pair your Suunto Sonic with.
Under the Bluetooth settings of the compatible device, open the list of nearby devices.
Find Suunto Sonic on the list and pair the headphones with the device.
When the pairing is successful, the headphones will play a sound and the white LED will light for 1 second before it switches off.
If Suunto Sonic is already on:
Keep the + and – buttons pressed simultaneously for 3 seconds to enter pairing mode. When the LED light alternately flashes red and white, the product is ready for pairing.
Make sure Bluetooth is enabled on the device you want to pair your Suunto Sonic with.
Under the Bluetooth settings of the compatible device, open the list of nearby devices.
Find Suunto Sonic on the list and pair the headphones with the device.
When the pairing is successful, the headphones will play a sound and the white LED will light for 1 second before it switches off.
Suunto app
With the Suunto app on your phone, you can further enrich your Suunto Sonic experience. Pair your headphones with the mobile app to adjust sound mode, connections and more.
To adjust headphones settings in Suunto app:
- Pair Suunto Sonic with the compatible mobile device via Bluetooth. See Pairing.
- Download and install Suunto app on your compatible mobile device from the App Store, Google Play or several popular app stores in China.
- Start Suunto app on your phone.
- The app automatically connects to your headphones.
- Go to your profile in Suunto app and open the headphones menu to adjust product settings.
Wearing the headphones
Suunto Sonic headphones are bone conduction headphones with open-ear style, allowing you to listen to audio and still hear your surroundings during exercises.
For the proper experience, put the headphones to the back of your head, with the hooks on your ears so that the transducers rest in front of your ears. Keep the back of the headphones parallel to the ground.

Whether you are training in the gym or you are out on rugged paths, the headphones stay stable on your head. Thanks to their light weight and the open-ear style, the headphones are comfortable to use for several hours. You can wear Suunto Sonic together with a bike helmet or a hat and even under a beanie.