Color:

K8 single microphone + Type-C interface/no charging port

K9 single microphone + Type-C interface

K9 single wheat + Type-C interface (with Apple adapter)

K9 single wheat + Apple interface

K9 double microphone + Type-C interface

K9 double wheat + Type-C interface (with Apple adapter)

K9 double microphone + Type-C interface (with Apple adapter + USB interface)

K9 double wheat + Type-C interface (with Apple adapter + a pair of fur balls)

K9 double wheat + Apple interface

K15 single microphone + three-in-one interface

K15 three-in-one double microphone + three-in-one interface

Apple adapter

A pair of fur balls

USB interface