Sennheiser MOMENTUM 4 Wireless Over-Ear Headphones - Adaptive ANC, 60-Hour Battery, Bluetooth 5.2, Black (509266) - New - Open Box
Sennheiser MOMENTUM 4 Wireless Over-Ear Noise Cancelling Headphones Black 509266

The Sennheiser MOMENTUM 4 Wireless (509266) are premium over-ear Bluetooth noise cancelling headphones built around an audiophile-inspired 42mm transducer system for Sennheiser's Signature Sound. They deliver up to 60 hours of battery life, Adaptive Noise Cancellation with Transparency Mode, and Bluetooth 5.2 with SBC, AAC, aptX, and aptX Adaptive codec support. Four digital beamforming microphones with wind noise suppression provide crystal-clear calls, while the Sennheiser Smart Control app adds a built-in EQ, sound presets, and Sound Personalization. A lightweight fold-flat design makes them ideal for travel, commuting, and all-day listening.

Sennheiser MOMENTUM 4 Wireless (509266) - Key Features & Benefits

  • Up to 60-Hour Battery Life: Marathon playback with ANC enabled, plus fast charging — a 5-minute charge delivers up to 4 hours of listening; a full charge takes about 2 hours via USB-C
  • Sennheiser Signature Sound: Audiophile-inspired 42mm dynamic transducers deliver rich, detailed, well-balanced audio across a 6 Hz–22,000 Hz frequency response
  • Adaptive Noise Cancellation & Transparency Mode: ANC automatically adapts to your surroundings, while Transparency Mode lets you hear external sounds without removing the headphones
  • Bluetooth 5.2 with High-Res Codecs: Supports SBC, AAC, aptX, and aptX Adaptive with Bluetooth multipoint for simultaneous connection to two devices
  • Crystal-Clear Calls: Four digital beamforming microphones with automatic wind noise suppression ensure clear voice pickup and easy voice assistant access
  • Customizable via Smart Control App: Built-in EQ, sound presets, and Sound Personalization through the Sennheiser Smart Control app for iOS and Android
  • Lightweight Fold-Flat Design: At just 293g with plush cushioning and a fold-flat profile, they pack down for easy travel and stay comfortable all day

Sennheiser MOMENTUM 4 Wireless (509266) - Technical Specifications

  • Part Number / Model: 509266 • MOMENTUM 4 Wireless
  • UPC: 0810091270431
  • Type: Over-Ear (closed-back), headband, double earcup
  • Color: Black
  • Driver: 42mm dynamic transducer system
  • Frequency Response: 6 Hz – 22,000 Hz (22 kHz)
  • Wireless: Bluetooth 5.2 • multipoint (2 devices)
  • Codecs: SBC, AAC, aptX, aptX Adaptive
  • Noise Control: Adaptive Noise Cancellation • Transparency Mode
  • Microphones: Four (4) digital beamforming with wind noise suppression
  • Battery Life: Up to 60 hours (ANC on) • 700 mAh Li-ion
  • Charging: ~2 hr full charge • 5 min = up to 4 hr playback • USB-C
  • Controls: Touch controls • Sennheiser Smart Control app (iOS/Android)
  • Dimensions (folded): 180 x 195 x 46.3 mm
  • Weight: 293g
  • Condition: New - Open Box

Sennheiser MOMENTUM 4 Wireless (509266) - Frequently Asked Questions (FAQ)

  • What devices and codecs are supported?
    The MOMENTUM 4 connects over Bluetooth 5.2 to virtually any smartphone, tablet, or computer and supports SBC, AAC, aptX, and aptX Adaptive. Android devices can use aptX Adaptive for higher-bitrate, low-latency streaming, while iOS uses AAC.
  • How long does the battery last and how fast does it charge?
    Up to 60 hours of playback with ANC on. A full charge takes about 2 hours via USB-C, and a quick 5-minute charge gives up to 4 hours of listening.
  • Can it connect to two devices at once?
    Yes. Bluetooth multipoint lets you stay connected to two devices simultaneously — for example a laptop and a phone — and switch between them automatically.
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