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Sennheiser Momentum 4 Wireless Noise Cancelling Headphones - Black by Sennheiser - Refurbished - Excellent condition

Sennheiser Momentum 4 Wireless Noise Cancelling Headphones - Black

Brand: Sennheiser

Condition: Refurbished - Excellent
$45399
$61716
-27% Save $16317
Updated: 16 days ago
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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?
Get the same great performance and features as new, for a fraction of the price. A certified pre-owned Sennheiser Momentum 4 Wireless Noise Cancelling Headphones is a smarter, more sustainable way to upgrade without breaking the bank. At Reebelo, every product is professionally cleaned, quality-tested, and backed by our warranty and 30-day free returns, so you can shop risk-free and ensure your purchase is the perfect fit. It's better for your budget, better for the planet, and always risk-free.
What does Reebelo's warranty cover?
Every purchase from Reebelo includes a Vendor Warranty of up to 12 months covering functional defects, giving you peace of mind and protection against unexpected issues. For tech products, our warranty covers all functional defects under normal use, as long as there's no physical or water damage by the customer. All products with batteries come with at least 80% capacity for reliable daily use. Many products offer upgrade options to 90% or 100%. You're covered for 12 months against battery failure and overheating. Want extra protection? Add our ReebeloCare Extended Warranty, an enhanced coverage plan that includes accidental damage from drops, spills, and other mishaps not covered by the 12-Month Vendor Warranty, available on select products.
Is a certified pre-owned Sennheiser Momentum 4 Wireless Noise Cancelling Headphones reliable?
Absolutely! Every Sennheiser Momentum 4 Wireless Noise Cancelling Headphones from Reebelo undergoes up to 70 rigorous quality checks, including professional inspection, cleaning, and repair to ensure it meets the highest standards of functionality. We work with trusted, certified vendors to guarantee top performance and long-lasting reliability, so you can enjoy your product with complete confidence.
How much can I save by buying a certified pre-owned Sennheiser Momentum 4 Wireless Noise Cancelling Headphones?
At Reebelo, you can save up to 70% off retail prices on a Sennheiser Momentum 4 Wireless Noise Cancelling Headphones, all while enjoying the same top-tier quality and performance. We're proud to offer certified pre-owned products from the brands you love — affordable, reliable, and thoroughly tested. Want to boost your savings even more? Trade in your old product with Reebelo and make your next upgrade even more affordable.
How does buying certified pre-owned products benefit the environment?
Purchasing a certified pre-owned Sennheiser Momentum 4 Wireless Noise Cancelling Headphones is one of the most effective ways to reduce waste and minimize your carbon footprint. By giving high-quality products a second life, you're helping prevent valuable materials from ending up in landfills, where they can take centuries to decompose and release harmful toxins into the environment. Reebelo is committed to supporting a more sustainable, circular economy, where products are reused, refurbished, and kept in circulation for longer. This not only conserves resources but also reduces the need to manufacture new items, cutting down on energy consumption, raw material extraction, and greenhouse gas emissions. Make a smarter, greener choice — every certified pre-owned product you buy helps create a more sustainable future for all.
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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-mhz4og2w1ABSfKb073ZkFUB
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 $163 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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