Apple AirPods Max 2 / Sennheiser MOMENTUM 4 Wireless

Apple AirPods Max 2: A3454 · USB-C

Sennheiser MOMENTUM 4 Wireless: MOMENTUM 4 Wireless over-ear wireless headphones; Black (509266), White (509267), Graphite (700383) and later Brown, Teal, Copper and Denim colours. MOMENTUM True Wireless in-ear models and MOMENTUM 3 Wireless are separate products.

SpecificationApple AirPods Max 2Sennheiser MOMENTUM 4 Wireless
Release year20262022
ModelA3454

Listed in Apple’s model table as AirPods Max 2, introduced in 2026.

Apple
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Announcement and availabilityAnnounced 16 March 2026; orders from 25 March; deliveries from early April

US and more than 30 other countries and regions.

Apple
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ColoursMidnight, Starlight, Blue, Purple, Orange Apple—
ChipApple H2 in each ear cup Apple—
Driver and amplifierApple-designed dynamic driver; custom high-dynamic-range amplifier; dual neodymium ring magnet motor

The manufacturer pages read give no frequency range or impedance.

Apple
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Noise controlANC, Transparency mode and Adaptive Audio; up to 1.5x more effective than the previous generation

Apple’s claim, based on IEC 60268-24 testing; it does not mean the same reduction in every environment.

Apple
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MicrophonesNine microphones: eight for ANC, three for voice pickup (two shared) Apple—
SensorsOptical, position, case-detect and accelerometer in each cup; gyroscope in the left cup only Apple—
ControlsDigital Crown (volume, play/pause, calls, Siri) and a listening mode button

No separate power button is listed.

Apple
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Bluetooth5.3

The manufacturer does not state supported audio codecs.

Apple
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Wired audioLossless and ultra-low-latency audio over USB-C; 24-bit / 48 kHz

Requires compatible content and a supported app. Lossless audio is not offered over Bluetooth.

Apple
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Analogue inputAnalogue sources via a USB-C to 3.5 mm audio cable

The cable is not listed among the box contents.

Apple
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Battery lifeUp to 20 hours of listening with ANC on

Apple’s test: pre-production units, 50% volume, ANC on, Spatial Audio fixed. Actual time depends on settings and environment.

Apple
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Quick chargeAbout 1.5 hours of listening from 5 minutes of charging Apple—
ChargingUSB-C; ultra-low-power state when stored in the Smart Case Apple—
Dimensions168.6 × 83.4 × 187.3 mm (width × depth × height), including cushions Apple—
Weight386.2 g; Smart Case 134.5 g

Apple says size and weight vary by configuration and manufacturing process.

Apple
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Build and cushionsAnodised aluminium ear cups; breathable knit-mesh canopy; stainless steel telescoping arms; memory foam and mesh-textile cushions Apple—
Water and dust resistanceNone

Apple lists this feature as not applicable to AirPods Max 2.

Apple
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Audio featuresAdaptive Audio, Conversation Awareness, Voice Isolation, Personalized Volume, Loud Sound Reduction, Adaptive EQ; Personalized Spatial Audio with head tracking

Adaptive Audio, Conversation Awareness, Voice Isolation and Personalized Volume need current firmware and operating system. A Spatial Audio profile needs an iPhone with a TrueDepth camera.

Apple
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Live TranslationBeta; needs an Apple Intelligence-enabled iPhone on iOS 26 or later

Languages: Chinese (simplified and traditional), English (US, UK), French (France), German, Italian, Japanese, Korean, Portuguese (Brazil), Spanish (Spain). Turkish is not listed.

Apple
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Software requirementiOS and iPadOS 26.4 or later; current operating system on Mac, Apple Watch, Apple TV and Apple Vision Pro

On older Apple software and non-Apple devices it works as basic Bluetooth headphones with limited functionality.

Apple
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Firmware9A348 (latest version in Apple’s list); adds an Equalizer control

Apple’s page gives no release date for this version.

Apple
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In the boxAirPods Max 2, Smart Case, USB-C charge cable, documentation AppleCarry case; USB-C charging cable; audio cable with 3.5 mm and 2.5 mm jacks; airplane adapter Sennheiser
AccessibilityLive Listen, Headphone levels, Headphone Accommodations

Requires the latest iOS or iPadOS.

Apple
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Type—Around-ear, closed-back, wireless; active noise cancelling

The ear pads fully surround the ear; Sennheiser cites a lightweight design, padded headband and deep cushioned earpads for long-wear comfort.

Sennheiser
Driver and frequency response—42 mm dynamic driver; 6 Hz–22 kHz; 106 dB SPL (1 kHz / 0 dB FS)

The frequency range describes measurement limits; the sound you hear is also shaped by the in-app equaliser and sound personalisation.

Sennheiser
Impedance—Active 470 Ω, passive 60 Ω Sennheiser
Noise cancelling and microphones—Adaptive hybrid ANC; 4 microphones in total (2 per side, MEMS, beamforming; 50 Hz–10 kHz); anti-wind mode; transparency mode

Hybrid ANC uses both outer and inner microphones; adaptive mode changes the level of cancellation to match ambient noise.

Sennheiser
Bluetooth and codecs—Bluetooth 5.2, Class 1; A2DP, AVRCP, HFP; SBC, AAC, aptX and aptX Adaptive

aptX Adaptive works only with Android phones that support it; iPhones use AAC. Multipoint connections are managed in the app.

Sennheiser
Battery and charging—700 mAh lithium-ion; up to 60 hours with noise cancelling on; full charge in about 2 hours; up to 4 hours from 5 minutes of charging; USB-C 5 V 800 mA

Sennheiser says the 60 hours was measured with an iPhone at medium volume; higher volume and aptX Adaptive can shorten it.

Sennheiser
Wired use—Hi-res digital audio over USB-C; 3.5 mm / 2.5 mm analogue cable

When listening over USB-C, the headphones decode digital audio internally; the analogue cable works even with a flat battery.

Sennheiser
Controls and app—Touch surface on the right cup; Smart Pause wear detection; Auto On/Off; 5-band equaliser and Sound Personalization in the Smart Control app

Smart Pause stops playback when the headphones are taken off and resumes when they are put back on; Auto On/Off shuts them down to save power when not in use.

Sennheiser
Water resistance—No IP rating listed

With no certification against sweat or rain, care is needed when it gets wet during exercise.

Sennheiser