And really this is way more verbage than necessary, just take a look at the plug to see if it's clean and make sure it's fully inserted. Depending on how misaligned they are (which correlates with how deeply the plug end is inserted), there might be only one channel going to the proper output. If the the plug isn't fully inserted, the switch may or may not be moved, and the matching metal contacts might not be aligned properly. In addition the metal contacts that make up the shaft of the plug end, in this instance ground, left channel, and right channel separated by plastic insulators, also have to line up with their corresponding ground, left channel, and right channel contacts inside the jack. If it isnt set as default, click it then click the Set Default button and sound should come through your headphone jack again. The plug end pushes aside a spring-loaded piece of metal, switching contacts so the audio out changes from the speaker to the headphone/earbud. Open it and make sure 'Speakers' or 'Headphones' is selected as default device (has a green tick next to it). A device is compatible if it has a 3.5mm headphone jack input, so you will be able to use our speaker with a range of devices such as Iphone 7, Iphone s, Ipod nano, Ipod shuffle, laptops, Ipad, Ipod classic, Samsung phones and more. To be honest I really can't say, but when you push your headphone plug end into your phone's headphone jack, it really is just a mechanical switch inside. The speaker, with aux output, can be plugged into any compatible device.

Speaker with headphone jack