Replacement Audio Cable For Sennheiser HD4.40 HD 4.40 BT HD4.50 HD 4.50 BTNC HD4.30i HD458BT Headphone Cable
Amazon.com: Sennheiser Consumer Audio HD 450BT Bluetooth 5.0 Wireless Headphone with Active Noise Cancellation - 30-Hour Battery Life, USB-C Fast Charging, Virtual Assistant Button, Foldable - Black : Electronics