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Sennheiser Momentum 4 Wireless Noise Cancelling Headphones - White by Sennheiser - Refurbished - Very Good condition

Sennheiser Momentum 4 Wireless Noise Cancelling Headphones - White

Brand: Sennheiser

Condition: Refurbished - Very Good
$48099
$68097
-30% Save $19998
Updated: 6 days ago

Description

OVERVIEW:
Sennheiser's Signature Sound: Discover best-in-class sound with our audiophile-inspired accoustic system.
Superior Sound: Enjoy your favorite music like never before with our audiophile-inspired 42mm transducer system that delivers brilliant dynamics, clarity and musicality.
Your way: Make the sound perfect for you using the built-in EQ, presets, sound modes, and Sound Personalization feature, which tailors the audio to your individual hearing.
New Adaptive Noise Cancellation and Transparency Mode: Go from total immersion to situational awareness with just a touch.
Full immersion: Our next generation Adaptive Noise Cancellation automatically adapts to ambient noise so you can stay immersed and hear every detail, even in noisy environments.
Situational awareness: Need to hear an announcement on the train or a question from your colleague? Just activate the versatile Transparency Mode at a touch to hear outside sounds without removing your headphones.
Premium look & feel: Enjoy exceptional comfort and streamlined style.
Premium comfort: The M4’s lightweight design features a padded headband and deep, yet soft, cushioned earpads to ensure exceptional and long-lasting wearing comfort.
Perfect fit: Meanwhile, the low-friction hinge mechanism easily adjusts to give you a great fit without placing excess pressure on your head.
Smart & easy: Let nothing stand in the way of your listening pleasure.
Up to 60-hour battery life: Keep on listening while you fly around the globe, with up to 60-hour battery life and fast charging capability that provides a further 6 hours listening in just 10 minutes.
Never miss a beat: Smart Pause halts playback when the headphones are taken off and automatically resumes when they’re back on your ears so you’ll never miss a beat, while Auto On/Off rapidly powers up the headset when it’s picked up and shuts down to save energy when not in use.
Smart Control App: For a truly tailored experience, download the Sennheiser Smart Control app, that makes it easy to customize the sound using the Built-in EQ, sound modes and the new Sound Personalization feature. This assesses your listening preferences and adjusts the listening experience according to your taste.

Specifications

  • Model Name: Sennheiser Momentum 4 Wireless Noise Cancelling Headphones
  • Article Number (SKU): 509266 (Black), 509267 (White)
  • Wearing Style: Headband Stereo Headphones
  • Ear Coupling: Around-the-Ear, Circum-Aural
  • Connectivity: Bluetooth 5.2 compliant, class 1, 10 mW (max)
  • Transmission Frequency: 2,402 MHz to 2,480 MHz; GFSK, π/4 DQPSK / 8 DPSK
  • Supported Profiles: A2DP, AVRCP, HFP
  • Codecs: SBC, AAC, aptX™, aptX adaptive™
  • Speaker Type: Dynamic
  • Transducer Principle: 42mm Diameter
  • Speaker Frequency Range: 6 Hz to 22 kHz
  • Speaker Sensitivity: 106 dB SPL (1 kHz / 0 dB FS)
  • Total Harmonic Distortion (THD): Speaker; <0,3% (1 kHz / 100 dBSPL)
  • Impedance: Speaker; Active 470 ohms / Passive 60 ohms
  • Active Noise Cancellation: Hybrid Adaptive ANC
  • Microphone Principle: MEMS
  • Frequency Response (Microphone): 50 Hz to 10 kHz
  • Microphone Pick-Up Pattern: 2 Mics Per Side, Beamforming For Noise Reduction
  • Battery Time: Up to 60 hrs Music Playtime via Bluetooth and with ANC (test condition; iPhone, mid-volume level)
  • Charging Time: Approx. 2 hrs for full charge; 5 min charging for up to 4 hrs playtime | Remark; Ambient temperatures >30°C may lead to extended charging times
  • Battery Type: Built-in Lithium-Ion rechargeable batteries 700 mAh
  • Power Supply: 5 V⎓, 800 mA max, USB charging via USB-C socket

Frequently Asked Questions

Why Should I buy a certified pre-owned Sennheiser Momentum 4 Wireless Noise Cancelling Headphones?
A certified pre-owned Sennheiser Momentum 4 Wireless Noise Cancelling Headphones offers incredible value, with savings up to 70% off vs new. Every item passes a 40+ point inspection to ensure it meets our high quality standards. It's the smarter way to shop—better for your wallet, and better for the planet.
What is Reebelo's return policy?
We offer a free 30-day change of mind policy, giving you plenty of time to make sure your Sennheiser Momentum 4 Wireless Noise Cancelling Headphones is perfect for you.
What does the warranty cover?
Every product includes a warranty of up to 12-months covering all functional defects under normal use.
How does buying certified pre-owned products benefit the environment?
Purchasing a certified pre-owned Sennheiser Momentum 4 Wireless Noise Cancelling Headphones is a powerful move for the planet, reducing CO2 emissions by up to 92% compared to buying new. By extending the life of high-quality goods, you bypass the carbon-intensive manufacturing process and prevent valuable materials from reaching landfills, where they can take centuries to decompose. Reebelo is driving a circular economy where products are kept in use rather than becoming part of the 62 million tonnes of waste generated annually. Your choice helps keep high-value materials in circulation and supports a more sustainable future for all.

Sold by

Reebelo

Verified Retailer

Leading certified refurbished marketplace

  • 12-month warranty included
  • 30-day money-back guarantee
  • Environmentally conscious refurbishment
  • Grade-certified by expert technicians

Product Details

SKU:
ru-sku-mpnt1p9a5THPz6mYwHGGlfM
Country:
US

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?
Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $200 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.
What's the difference between open-box and refurbished?
Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.
Why use OpenBoxFox?
Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for Sennheiser products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.
Is it safe to buy refurbished?
Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.

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