![New Headphone Case for Sennheiser HD 4.40 HD 4.50 BT HD 4.50BTNC Bluetooth Wireless Headphones Carrying Case Portable Pouch Box|Earphone Accessories| - AliExpress New Headphone Case for Sennheiser HD 4.40 HD 4.50 BT HD 4.50BTNC Bluetooth Wireless Headphones Carrying Case Portable Pouch Box|Earphone Accessories| - AliExpress](https://ae01.alicdn.com/kf/Hb526516d79aa4fcbab6451c1889774fdl/New-Headphone-Case-for-Sennheiser-HD-4-40-HD-4-50-BT-HD-4-50BTNC-Bluetooth.jpg_Q90.jpg_.webp)
New Headphone Case for Sennheiser HD 4.40 HD 4.50 BT HD 4.50BTNC Bluetooth Wireless Headphones Carrying Case Portable Pouch Box|Earphone Accessories| - AliExpress
![Sennheiser HD 4.50 BTNC Bluetooth Wireless Headphones with Active Noise Cancellation, Black and Silver (Discontinued by Manufacturer) Sennheiser HD 4.50 BTNC Bluetooth Wireless Headphones with Active Noise Cancellation, Black and Silver (Discontinued by Manufacturer)](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/51v9N5-cPvL.jpg)
Sennheiser HD 4.50 BTNC Bluetooth Wireless Headphones with Active Noise Cancellation, Black and Silver (Discontinued by Manufacturer)
![Review: Sennheiser HD 4.40 BT Wireless, HD 4.50 BTNC Wireless and Sennheiser PXC 550 Wireless - Son-Vidéo.com: blog Review: Sennheiser HD 4.40 BT Wireless, HD 4.50 BTNC Wireless and Sennheiser PXC 550 Wireless - Son-Vidéo.com: blog](https://i0.wp.com/blog.son-video.com/wp-content/uploads/2017/06/test-sennheiser-440-450-550-Wireless-010.jpg?ssl=1)