![Sennheiser MM 550-X Noise-canceling Bluetooth® stereo headset with aptX® high-fidelity wireless audio capability at Crutchfield Sennheiser MM 550-X Noise-canceling Bluetooth® stereo headset with aptX® high-fidelity wireless audio capability at Crutchfield](https://images.crutchfieldonline.com/ImageHandler/trim/620/378/products/2012/6/143/g143MM550X-o_packaging.jpeg)
Sennheiser MM 550-X Noise-canceling Bluetooth® stereo headset with aptX® high-fidelity wireless audio capability at Crutchfield
![Sennheiser MM 550-X Travelling Headset Review - Active Noise Cancellation, SRS, BT and TalkThrough | Technology X Sennheiser MM 550-X Travelling Headset Review - Active Noise Cancellation, SRS, BT and TalkThrough | Technology X](https://www.technologyx.com/wp-content/uploads/2014/02/Sennheiser-MM-550-X-Travelling-Headphones-Featured.jpg)
Sennheiser MM 550-X Travelling Headset Review - Active Noise Cancellation, SRS, BT and TalkThrough | Technology X
![Cameron Sino 270mAh Battery for Sennheiser PXC 310,MM 400,MM 450,450 TRAVEL, 550 Travel,PX 210 BT,PX 360,MM 550,PX 310 BT - AliExpress Cameron Sino 270mAh Battery for Sennheiser PXC 310,MM 400,MM 450,450 TRAVEL, 550 Travel,PX 210 BT,PX 360,MM 550,PX 310 BT - AliExpress](https://ae01.alicdn.com/kf/Sc620c36fe42a467688483a3d054b15c0P/Cameron-Sino-270mAh-Battery-for-Sennheiser-PXC-310-MM-400-MM-450-450-TRAVEL-550-Travel.jpg)
Cameron Sino 270mAh Battery for Sennheiser PXC 310,MM 400,MM 450,450 TRAVEL, 550 Travel,PX 210 BT,PX 360,MM 550,PX 310 BT - AliExpress
![Ive loved my MM 550-X bluetooth headphones to death. Ive used them for listening weekly since 2013 and they sadly slowly dying on me. When they came out Bluetooth headphones were such Ive loved my MM 550-X bluetooth headphones to death. Ive used them for listening weekly since 2013 and they sadly slowly dying on me. When they came out Bluetooth headphones were such](https://preview.redd.it/ogdozc4p49841.jpg?auto=webp&s=5a24dbc6e1e9cdceaa19b2608877ef5ea897c79b)
Ive loved my MM 550-X bluetooth headphones to death. Ive used them for listening weekly since 2013 and they sadly slowly dying on me. When they came out Bluetooth headphones were such
![Sennheiser MM 550-X Travelling Headset Review - Active Noise Cancellation, SRS, BT and TalkThrough | Technology X Sennheiser MM 550-X Travelling Headset Review - Active Noise Cancellation, SRS, BT and TalkThrough | Technology X](https://www.technologyx.com/wp-content/uploads/2014/02/Sennheiser-MM-550-X-Travelling-Headphones-oPERATINGSwitches.jpg)
Sennheiser MM 550-X Travelling Headset Review - Active Noise Cancellation, SRS, BT and TalkThrough | Technology X
![Sennheiser MM 550-X Travelling Headset Review - Active Noise Cancellation, SRS, BT and TalkThrough | Technology X Sennheiser MM 550-X Travelling Headset Review - Active Noise Cancellation, SRS, BT and TalkThrough | Technology X](https://www.technologyx.com/wp-content/uploads/2014/02/Sennheiser-MM-550-X-Travelling-Headphones-Accessories.jpg)