Replacement Hd4.50bt, Hd4.50btnc, Memory Ear Pads Cushion For Sennheiser Hd 4.50bt, Hd 4.50btnc, Hd 4.40bt Bluetooth Headphones - Earphone Accessories - AliExpress
Amazon.com: defean Replacement Gray Fabric HD4.50BT, HD4.50BTNC, HD4.40BT Memory Ear Pads Cushion Compatible with Sennheiser HD 4.50BT, HD 4.50BTNC, HD 4.40BT Bluetooth Headphones (All Fabric) : Electronics
Amazon.com: Sennheiser HD 4.50 BTNC Bluetooth Wireless Headphones with Active Noise Cancellation, Black and Silver (Discontinued by Manufacturer) : Electronics
Amazon.com: Sennheiser HD 4.50 BTNC Bluetooth Wireless Headphones with Active Noise Cancellation, Black and Silver (Discontinued by Manufacturer) : Electronics
Protein Leather Replacement Ear Pads For Sennheiser Hd4.50bt, Hd4.50btnc, Hd4.40bt Headphones, Ear Cups Repair Parts - Protective Sleeve - AliExpress