![Amazon.com: Sennheiser HD 450BT Bluetooth 5.0 Wireless Headphone with Active Noise Cancellation - 30-Hour Battery Life, USB-C Fast Charging, Virtual Assistant Button, Foldable - Black (Renewed) : Cell Phones & Accessories Amazon.com: Sennheiser HD 450BT Bluetooth 5.0 Wireless Headphone with Active Noise Cancellation - 30-Hour Battery Life, USB-C Fast Charging, Virtual Assistant Button, Foldable - Black (Renewed) : Cell Phones & Accessories](https://m.media-amazon.com/images/I/61h8NTXn5oL.jpg)
Amazon.com: Sennheiser HD 450BT Bluetooth 5.0 Wireless Headphone with Active Noise Cancellation - 30-Hour Battery Life, USB-C Fast Charging, Virtual Assistant Button, Foldable - Black (Renewed) : Cell Phones & Accessories
![Amazon.com: HD4.50BT Replacement Ear Pads Quite-Comfort Protein Leather, Earpads Cushions for Sennheiser HD4.50BT, HD4.50BTNC, HD4.40BT, HD450BT HD430 HD440 HD350BT HD400S HD458BT HD300 Headphones(White) : Electronics Amazon.com: HD4.50BT Replacement Ear Pads Quite-Comfort Protein Leather, Earpads Cushions for Sennheiser HD4.50BT, HD4.50BTNC, HD4.40BT, HD450BT HD430 HD440 HD350BT HD400S HD458BT HD300 Headphones(White) : Electronics](https://m.media-amazon.com/images/I/51wFyMrdw3L._AC_UF894,1000_QL80_.jpg)
Amazon.com: HD4.50BT Replacement Ear Pads Quite-Comfort Protein Leather, Earpads Cushions for Sennheiser HD4.50BT, HD4.50BTNC, HD4.40BT, HD450BT HD430 HD440 HD350BT HD400S HD458BT HD300 Headphones(White) : Electronics
![Sennheiser HD 4.40 BT Affordable Over-Ear Sealed Bluetooth Headphones Measurements | Stereophile.com Sennheiser HD 4.40 BT Affordable Over-Ear Sealed Bluetooth Headphones Measurements | Stereophile.com](https://www.stereophile.com/images/Sennheiser_HD440BT_Graphs_HD44BTWired.jpg)