Genuine Beats X, Powerbeats 3, Beat EP control talk cover. These covers are interchangeable. Part will clip into your control talk of your device. 

Colors :

PowerBeats 3 Wireless:

Black, White, Blue, Gray

Beats X:

White, Blue, Black, Gray

Beat EP:

White, Black, Dark Blue, Red

Covers are installed fairly easy. Feel free to reach out if you need help.