If the device cannot play stereo sound, the headphones will not replicate stereo sound.
Make sure the plug is completely inserted into the device. NOTE: It is possible that the headphone plug has not been inserted properly due to some rigidness of the headphone jack on the device used (music player, smartphone, tablet, etc.). To reduce the chance of any problems, proper maintenance of your product is key:
Identify the symptom that is troubling you by checking the following categories: Solutions will different when using a wireless connection Overview IMPORTANT: The following solutions are applicable to cases when the headphones and playback device are connected directly with a cable.