Suitable for model: For Sennheiser HD 4.50BT, HD 4.50, HD 4.50BTNC, HD 4.50SE, HD 4.40BT, HD 4.30G, HD 4.20S, HD 458BT, HD 450, HD 450BT, HD 400S, HD 350BT. The ear cushions are infused with ice-sensitive gel, you can play for hours without the burning and tight feeling like other headphones.
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