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The MM 450-X Noise-Cancelling 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 aptX codec so you can enjoy wireless audio from aptX-capable sources.
The headset features Sennheiser's active NoiseGard 2.0 noise-cancellation technology, which 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.
The headset has a collapsible design for terrific portability. The on-ear design and soft ear cushions provide excellent comfort and noise isolation. Patented DuoFol transducers deliver detailed, natural sound. 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. The headset has a replaceable battery that charges via a USB connection, and a wall adapter is included so you can recharge practically anywhere. A carrying case 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
aptX codec support allows you to wirelessly listen to aptX-compatible devices
Make phone calls with Bluetooth-equipped mobile phones and smartphones. You can even seamlessly switch between music and calls
Sennheiser's active NoiseGard 2.0 noise-cancellation technology 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
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, padded headband, and plush on-ear cushions offer terrific portability, lasting comfort, and excellent noise isolation
Patented DuoFol transducers deliver detailed, natural sound with a wide frequency response
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 wall adapter is included for charging with a standard wall socket
A dual-prong airplane adapter is included for use in-flight entertainment systems. A carrying case offers convenient storage and portability
In the Box
Sennheiser MM 450-X Noise-Cancelling Bluetooth Wireless Headset
AC Wall Adapter
Dual-Prong Airplane Adapter
Ear Cushions (Pre-Installed)
2-Year Limited Warranty
Table of Contents
Up to 33' (10 m)
2.1 + EDR and aptX
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