For Sony WF-1000XM4 / WF-1000XM3 Universal Earplug Sleeve Ear Cap Earmuffs(Black)

1. Effectively reduce external noise and enhance low-frequency perception2. Effectively solve the problems of long-term wearing of ordinary silicone earmuffs and ear discomfort3. Fits the shape of the human ear canal and is comfortable to wear4. Different sizes are available5. Not easy to slip off, soft and comfortable