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![Sennheiser MM 400 Bluetooth® stereo headset with built-in microphone and hands-free operation at Crutchfield Sennheiser MM 400 Bluetooth® stereo headset with built-in microphone and hands-free operation at Crutchfield](https://images.crutchfieldonline.com/ImageHandler/trim/750/457/products/2011/20/143/g143MM400-o_folded2.jpeg)
Sennheiser MM 400 Bluetooth® stereo headset with built-in microphone and hands-free operation at Crutchfield
![Sennheiser MKE 400 - - Highly directional on-camera shotgun microphone with integrated features to enhance dialogue and in-camera audio. Sennheiser MKE 400 - - Highly directional on-camera shotgun microphone with integrated features to enhance dialogue and in-camera audio.](https://sennheiser.sirv.com/Spins/508898/508898_E1_R01_C01.jpg?scale.option=fill&scale.width=1500&quality=60)