Immersive sound powered your way. Get wireless charging with the Bose Wireless Charging Case Cover for QuietComfort Ultra Earbuds and QuietComfort Earbuds II. This silicone case cover is soft to the touch and defends against scratches and scuffs. And to keep your earbuds close by, it features an aluminum carabiner you can clip to your bag. Bose Wireless Case Cover – wireless power and convenience that puts you in charge.