I find it best employed on clean, un product manipulated facial hair. I took a chance since the review claimed this ran large and it fits! However I had to give 5 Star rating. This just 3 months . I finally did & the cost was MUCH lower than I expected. Performance wise I tested it at home using phone and laptop, both sound great, no need to hover over the speaker you can sit in your chair comfortably and talk. Cant get there to pair reliably with my mac and cant seem to use them for MS Teams. We ended up shaving the part that goes inside down a bit to let it slide into the slot easier. Easy to use and install; perfect for use with our Thule bike trailer. En llamadas se escuchan algo mejor que los anteriores pero con mala calidad.