Several compatible iOS devices let you use your Surge to pause and resume music that is playing on your device. To determine whether your device supports this feature, go to http://www.fitbit.com/devices. The Surge uses the AVRCP Bluetooth profile to control music; therefore, the app providing your music must be compatible with AVRCP. Some streaming music apps do not broadcast track information and therefore the track title won't appear on your Surge display. However, if an app supports AVRCP you can still pause or skip a track, just not see its title on your Surge.
Even if you have already connected your Surge with the Fitbit app on your device to enable syncing or notifications, you must follow the instructions below to enable music control. 

ENABLING MUSIC CONTROL

To control music from your Surge, you use the Bluetooth feature on your phone to connect ("pair") your Surge with your mobile device. Pairing your Surge requires you to perform steps on both your Surge and your mobile device. Have them both close at hand before continuing.

To enable music control:
  1. On your Surge:
    1. Display the Menu, then swipe to Settings.
    2. Scroll to Bluetooth Classic.
    3. If the setting is Off or On, press the Select button until the setting is Pair.
  2. On your mobile device:
    1. Navigate to the Bluetooth Settings screen where paired devices are listed.
    2. Make sure your device is discoverable and is scanning for devices.
    3. When “Surge (Classic)” appears as an available device, select it.
    4. Wait for a message showing a six-digit number.
  3. Perform the following two steps in close succession:
    1. When the same six-digit number appears on your Surge, press the Action button (upper right) to confirm the pairing.
    2. On your mobile device, select Pair.

If you have trouble setting up your Surge for music control, see I'm having trouble using my Surge for music control.

CONTROLLING MUSIC WITH YOUR SURGE

After you have paired your tracker for music control, you can access the music control screen at any time.
  1. Open a music app on your mobile device and begin playback.
  2. Double-press the Home button on your Surge to display the music control screen, where you can see information about the track currently playing. You can pause playback or skip to the next track. Note that not all music apps broadcast track information, which means the song title won't appear on your Surge. You can still pause or skip to the next track.
  3. Press the Home button to return to the previous display.
As with most other Bluetooth devices, if you connect another Bluetooth device and disconnect your Surge, you will have to connect it again the next time you want to use it to control music. 

If you have trouble controlling music with your Surge, see I'm having trouble using my Surge for music control.