Asus Ai Noise-cancelling Mic Apapter

Purchased last year from Datart. I bought it to boost the volume and clarity with my old phone when using wired headphones. As I no longer have any wired headphones I no longer need the adapter. From my initial testing the addition of an external DAC significantly enhanced audio with music, podcasts, audiobooks and voice calls. Can be used with notebooks as well as mobile phones. I suggest looking at ASUS's website for more information. As new in box with receipt. Apologies for writing in English, I am an Englishman living in Olomouc.