Please confirm you're pressing the Smart Dial properly. Double press will take you to the next track; a triple press to the previous one. If you're pressing properly and still unable to control music playback, try using a different music app to check if the function works.
When you press, your commands are transmitted through the device to the app for processing. However, as certain apps don't support these switching commands, they may not respond to the earphones' control commands, resulting in ineffective control operations. This issue occurs in various Bluetooth earphones and does not indicate a problem with the Necklace Pro.
