Used only once. I'm selling them because they didn't fit my ears. Except for the ear tips that are currently on the earphones, everything else is new. USB-C connection hands-free call compatible earphones. - Brand: JBL - Model Name: TUNE 310C USB - Connection Type: USB-C - Features: Digital-to-Analog Converter built-in - Hands-free call function: Yes - Included items: Ear tips (multiple sizes) Thank you for looking.