Apple AirPods 5 (Wireless Charging Case) / Sennheiser MOMENTUM 4 Wireless

Apple AirPods 5 (Wireless Charging Case): A3439 / A3440 / A3441; A3529 wireless case; white

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 5 (Wireless Charging Case)Sennheiser MOMENTUM 4 Wireless
Release year20262022
Announcement / availability9 / 18 September 2026 Apple—
ChipApple H2 Apple—
Noise controlANC, Adaptive Audio, Transparency Apple—
AudioCustom dynamic driver; Adaptive EQ Apple—
Spatial audioDynamic head tracking Apple—
SensorsOptical in-ear sensor; motion and speech accelerometers Apple—
MicrophonesDual beamforming and inward-facing microphones Apple—
ControlsPress controls; swipe volume adjustment Apple—
Bluetooth5.3 Apple—
Earbud battery lifeUp to 5 hours ANC on / 7 hours off Apple—
Total with caseUp to 22 hours with ANC on Apple—
Quick charge5 minutes in case: about 1 hour listening Apple—
Charging caseUSB-C; Qi and Apple Watch chargers Apple—
Find MySpeaker in case Apple—
ProtectionIP57 Apple—
Earbud size / weight30.2 × 18.3 × 18.1 mm; 4.3 g each Apple—
Case size / weight46.2 × 50.1 × 21.2 mm; 34.7 g Apple—
Other devicesBluetooth audio; some features require Apple devices Apple—
Case compatibilityA3529 pairs only with wireless-case AirPods 5 earbuds Apple—
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
In the box—Carry case; USB-C charging cable; audio cable with 3.5 mm and 2.5 mm jacks; airplane adapter Sennheiser
Water resistance—No IP rating listed

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

Sennheiser