In-Line Volume Control 3.5mm allows you to fine-tune the volume coming out of the source and fine-tune the volume to just the right amount.
I use this, for instance, on United Airlines flight seats. Because of our units’ sensitivity, you can not reduce the sound coming through the plane system low enough to get the power humm to stop, and the lowest setting just too loud.
Using this in-line volume control, you can turn the volume coming out down to your ears and up from the seat to cancel the aircraft’s low volume humm.
For Bluetooth users, you can use this to plug into an external Bluetooth device and pair it to your phone and use it as the volume control while your riding.
Additionally, you can put this in-line volume control with your Big Ears and turn the volume up and down without having to find the device itself and adjusting it there.
It will also come with the old school 1/4 inch standard headphone jack that the 3.5mm will plug into as a bonus.