This 3-in-1 Usb-c to Usb adapter combines an Otg port, a 3.5mm headphone jack, a Usb-c fast charging port, all of which can work simultaneously so you can charge your device while making calls, listening to music, transferring files. The Usb-c to 3.5mm audio adapter supports headphone listening and calls with in-line controls for answering, volume, pause, play, plus a built-in high-resolution Dac chip delivering up to 24bit/96kHz audio output for a high-fidelity lossless experience. The multifunction Otg adapter transfers files such as Excel, Word, Txt, Pdf, MP3, MP4, Jpeg, Raw at up to 480 Mbps, connects peripherals including flash drives, Usb hubs, microphones, cameras, electric pianos, keyboards, mice, speakers, more. Usb-c Pd supports fast charging up to 60W (20V/3A), helping you avoid low battery anxiety. Plug and play with no app needed, it works with most Usb-c phones, tablets, laptops, players.