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Sennheiser MX W1 3.5mm Connector Earbud Totally Wireless Earphone

  • 19Hz-20KHz
  • 3.5mm Connector
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Sennheiser sound quality and no wire. What could be better? The MX W1 wireless earphone system delivers great sound and lets you enjoy it throughout your house. Powered by built-in rechargeable Lithium-ion battery and long operating time lets you wear them without worry. Recharging the batteries is easy; just put the earphones on the charging station.

With the revolutionary KLEER wireless technology, the MX W1 delivers CD-quality sound reproduction with completely wireless solution. It allows for connecting up to 2 stereo sets to one transmitter, so you can listen to the same song with your friend without head-to-head limit.

  • newegg Maximum Comfort The ultra-lightweight Sennheiser MX W1 utilizes Twist-To-Fit design to provide a secure fit in your ear, perfect for extended listening periods.
  • newegg KLEER Wireless Transmission With KLEER audio technology, the Sennheiser MX W1 delivers CD-quality sound reproduction without cumbersome cables!
  • newegg Convenient Recharge The Sennheiser MX W1 features a convenient charging station for storing and recharging the earphones. Simply place the earphones onto the charging station and connect the USB charging cable to start charging.

Learn more about the Sennheiser Electronic corp. MX W1




Wireless Type
Operating Time
Receivers: Approx. 3-4 hrs

Transmitter: Approx. 10 hrs
Approx. 32.8 ft. (10 m) in open area

General SPEC

Frequency Response
<0.5% at 1 kHz with nominal output of 100 dB SPL
Input Impedance
32 ohms
Signal to Noise Ratio(SNR)
>80 dB
115dB S.P.L. at 1KHz
Ear Coupling
Receiver: 0.4 oz.

Transmitter: 0.6 oz.

Charging station: 1.5 oz.


KLEER Wireless transmission for uncompressed, full bandwidth audio reproduction

Completely wireless solution; unteathered Left/Right headphones and transmitter

Connect up to 2 stereo sets to one transmitter

Docking station serves as a remote charging station (up to 3 charges)

Twist-to-Fit system (see diagram in downloads section) locks the headphones in place

Newly developed 14mm transducer from the Sennheiser Ireland clean-room

Simple-to-use; plug & play design

Headphones may bypass included transmitter to connect to other KLEER devices

Quick Info

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