2-in-1 Headset Adapter. Splits one usb port into Headset and Charging. 3.5mm port DOES NOT support phone calls. 3.5mm port is for listening music ONLY. Multi-Functional: This is our upgraded 3.5mm audio adapter, it is specially designed for new iPhone C devices without 3.5mm jack to charge while listening to music from headphones. Color: Might come in black or grey colors.