Replacement Silicone Headband Cover, Comfortable Soft Headset Headband Protector for Wireless Headphones

Get this in you can’t get a warranty exchange from Sennheiser-Hearing (Sonova): https://a.co/d/0107FgDy https://a.co/d/0b8XIjqQ Even if you do get a warranty exchange, I strongly suggest you get the headband cover to protect your refurb momentum 4.