Earbuds that are Twistlock for a secure fit guaranteed not to fallout.
* It's sweat and water resistant that is designed to allow ambient noise so you are aware of your surrounding during active use.
* There is no button to adjust the volume.
It has been rarely used as it's a little to big for my ears and really don't have the dexterity in one of my hands to be able to fit them in my ears. Because of this they're in very good and clean condition. They have been cleaned and sanitized with rubbing alcohol.
If you're unsure about it's use, I'm open to meet with you to check it out.