MM 550-X Around-Ear Stereo Bluetooth Wireless Headset MM550X
USD $269.00
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The MM 550-X Around-Ear Stereo Bluetooth Wireless Headset from Sennheiser is a high-quality wireless headset that allows you to enjoy your music with virtually any Bluetooth-enabled device, as well as make phone calls with Bluetooth-enabled multimedia smartphones. The headset is compatible with iPhones, iPods, iPads, Android devices, and more. It also supports the Apt-X codec, which provides enhanced audio quality when the MM 550-X is used in conjunction with an Apt-X-enabled device.

The headset features Sennheiser's active NoiseGard 2.0 noise-cancellation technology, which improves audio quality and reduces environmental noise by up to 90% so you can focus on your music instead of your surroundings. It also has a TalkThrough function that lets you hear your surroundings without having to take off the headphones, ideal for listening to announcements or having a brief conversation. Switchable SRS WOW HD simulated surround sound is also built into the headphones for added depth and realism.

  • Bluetooth Wireless Technology and Apt-X
  • NoiseGard 2.0 and SRS WOW HD
  • DuoFol Transducers
  • Collapsible Construction
  • Thick Around-Ear Cushions
  • Adjustable, Padded Headband
  • Integrated Microphone and Controls
  • USB or Wall Charging
  • Includes Cable for Wired Use
  • 3.5mm Plug with Plane and 1/4" Adapters
In The Box
  1. Sennheiser MM 550-X Around-Ear Stereo Bluetooth Wireless Headset MM550X
Around-ear, closed-back, dynamic
Wireless Range
Up to 33' (10 m)
2.1 + EDR and Apt-X
Supported Profiles
Frequency Range
15 Hz - 22 kHz
Total Harmonic Distortion
< 0.1% (1 kHz)
Up to 107 dB
Mic Frequency Response
100 Hz - 10 kHz
Polar Pattern
Battery Life
Talk: Up to 20 hours
Listen: Up to 10 hours without NoiseGard, 8 hours with NoiseGard
Charging: Approx 3 hours
1 x USB port
1 x 3.5mm cable connector
1 x 3.5mm plug (on cable)
1 x Dual-prong airplane adapter 1 x 1/4" adapter
6.3 oz (179 g)