I emailed the customer service email in the owner’s manual on February 11. They are super comfortable and easy to use. Does this headset deserve a 1 star: No. My go-to pair of work shoes - bought three pairs at a go because theyre pretty much all I wear 90% of the time! Perfect price and hard to find earphones to go with my OnePlus 7t since the plug end needs to be USB not the typical microphone end. My jbl Xtreme 2 power key stopped working 16 days after I purchased. They seem comfortable and durable. I have to use the one that came with the mouse. I am so glad I bought these. I needed a size 12.