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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.
The headset has a collapsible design for terrific portability. The around-ear design and soft ear cushions provide excellent comfort and noise isolation. The patented DuoFol diaphragms and neodymium magnets deliver detailed, natural sound with terrific bass. The integrated microphone is invisible and out of the way, but provides excellent vocal pickup. Controls for volume control, track skip, play/pause, and answer/end call are conveniently built right into the headset, giving you full control without having to remove the headset.
In situations where wireless listening isn't ideal, a detachable cable is included that turns the headset into a pair of wired headphones. The cable has a standard 3.5mm plug for compatibility with MP3 players, CD players, laptops, and more. A dual-prong airplane adapter is included for use with in-flight entertainment systems, while a 1/4" adapter offers compatibility with pro-level gear and home theater systems. The headset has a replaceable battery that charges via a USB connection, and a multi-country wall adapter is included so you can recharge practically anywhere. A carrying pouch is included for convenient storage and portability.
Note: Due to the nature of Bluetooth technology, users may experience a slight audio latency when watching video on a portable device. This is a characteristic of all Bluetooth headsets. Latency is not an issue for audio-only use, or when using the included detachable headphone cable for a wired audio connection when watching video.
Stereo A2DP Bluetooth wireless technology lets you enjoy your music with virtually any Bluetooth-enabled device, such as a computer, smartphone, or tablet including iPhones, iPods, iPads, Android devices, and more
Make phone calls with Bluetooth-equipped mobile phones and smartphones. You can even seamlessly switch between music and calls
Apt-X codec support provides higher-quality audio than standard Bluetooth and allows you to wirelessly listen to Apt-X compatible devices
Sennheiser's active NoiseGard 2.0 noise-cancellation technology improves audio quality and reduces environmental noise by up to 90% so you can focus on your music instead of your surroundings
The TalkThrough function 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 built into the headphones for added depth and realism, ideal for enhancing older tracks or poor quality rips
A detachable cable lets you use the headset as a set of standard wired headphones when wireless listening isn't possible. The 3.5mm stereo plug is compatible with CD players, MP3 players, laptops, and more
The folding design, metal-reinforced padded headband, and thick around-ear cushions offer terrific portability, lasting comfort, and excellent noise isolation
Patented DuoFol diaphragms and neodymium magnets deliver detailed, natural sound with a wide frequency response. There is also a bass-enhanced normal listening mode, which can be used when NoiseGard is bypassed
The integrated microphone is invisible and out of the way, but provides excellent vocal pickup
Integrated controls for volume, track skip, play/pause, and answer/end call are conveniently built right into the headset and offer tactile "click" feedback
The replaceable battery charges via a USB connection for convenient charging via computer. A multi-country wall adapter with plugs for Europe, the USA, the UK, and Australia is included for charging with a standard wall socket
A dual-prong airplane adapter is included for use in-flight entertainment systems, while a 1/4" adapter provides compatibility with pro-level audio devices and home theater systems. A carrying pouch offers convenient storage and portability
In the Box
Sennheiser MM 550-X Around-Ear Stereo Bluetooth Wireless Headset
AC Wall Adapter (US, EU, UK, AU)
Dual-Prong Airplane Adapter
Gold-Plated 1/4" Adapter
2-Year Limited Warranty
Table of Contents
Around-ear, closed-back, dynamic
Up to 33' (10 m)
2.1 + EDR and Apt-X
A2DP, AVRCP, HSP, HFP
15 Hz - 22 kHz
Total Harmonic Distortion
< 0.1% (1 kHz)
Up to 107 dB
Mic Frequency Response
100 Hz - 10 kHz
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