Specification: Interface: USB-C (male), 3.5MM audio headphone jack Length: A variety of sizes can be selected Material: ABS, Copper, Aluminum Premium Solution: Plug and playNo extra installation or driver needed. It can directly convert audio signal from USB-C end to traditional 3.5mm standard output. A fast way to reuse your wired headphones. This product is a premium solution for most USB-C devices which have no 3.5mm audio/headphone jack. Some phones may not perfectly support your headphone/earphone which will cause little noise when plugged in via this adapter. We recommend you to update Android system version of your phone if you meet problem of compatibility on below models.