Sennheiser's now acclaimed MOMENTUM series for the perfect balance between acoustic excellence and luxury, continues to redefine the standard of sophisticated listening.

SUPERIOR AUDIO EXPERIENCE
Sennheiser Signature Sound – Powered by Sennheiser's 42mm transducer system, inspired by audiophiles for exceptional high-fidelity sound.
Customizable sound – Listen your way using the built-in EQ, presets, sound modes and sound personalization - all accessible via the Sennheiser Smart Control app.
Adaptive Noise Cancellation and Transparency Mode – Advanced noise cancellation automatically adjusts the sound to your environment. Transparency mode allows you to listen to external sounds without removing your headphones.
Crystal clear calls – Four digital beam forming microphones ensure high-quality voice pickup and automatic wind cancellation, noise suppression for optimized calls and easier access to voice assistant.
Codec Support – Support for SBC, AAC and aptX Adaptive ensures the highest quality option is automatically selected for your device.
ABSOLUTE COMFORT AND EXCELLENT DESIGN
Premium Comfort – Lightweight design featuring a padded headband and "deep cushioned earpads" to ensure exceptional long-lasting comfort.
Collapsible with Case – Flat collapsible design and premium hard case with soft fabric cover make storage and transport safe and easy, saving valuable space.
Enhanced design – Premium fabric details highlight the subtle design to complement your unique style.
The light weight, foldable flat design and ultra slim case make it easy to carry anywhere.

SMART EASY TO USE
Top performance battery life – Enjoy an outstanding 60 hours of playback time, with fast charging.
Auto On/Off – Activates when you simply pick up the headphones and automatically turns off after 15 minutes of non-use.
Smart Pause – Automatically pauses and resumes playback when the headphones are removed or placed back in the ears.
Intuitive touch controls – Touch interface on the right earcup for music, ANC, calls and voice assistant ensures effortless ease of use.

Features:
Style of use: Headband and stereo headphones
Ear coupling : Around the ear, circum-aural
Connectivity: Bluetooth 5.2 Compliant, Class 1.10mW (Maximum)
Transmission frequency/modulation: 2,402 MHz to 2,480 MHz. GFSK, p/4 DQPSK / 8 DPSK
Supported profiles: A2DP, AVRCP, HFP
Supported codecs: SBC, AAC, aptX™, aptX adaptive™
Speaker principle: Dynamic
Speaker type/size: Diameter 42mm
Speaker frequency range: 6 Hz to 22 kHz
Speaker sensitivity: 106 dB SPL (1 kHz / 0 dB FS)
Speaker THD: <0.3% (1 kHz / 100 dBSPL)
Speaker impedance: Active 470 ohms / Passive 60 ohms
Active noise cancellation (ANC) : Hybrid Adaptive ANC
Mic principle: MEMS
Microphone frequency range: 50 Hz to 10 kHz
Mic pick-up pattern: 2 mics per side, beamforming for noise reduction
Battery life: Up to 60 hours of music playback via Bluetooth and with ANC (test condition: iPhone, medium volume)
Charging time: Approx. 2 hours for full charge. 5 minute charge for up to 4 hours of playback. Remark: Ambient temperatures >30°C may result in prolonged charging times
Battery Type: Built-in 700mAh Li-ion rechargeable batteries
Power supply 5 V?, 800 mA max, USB charging via USB-C connector
Magnetic field strength: 6.25 mT
Product weight: Ca. 293g (10.3oz)
Product dimensions :(folded flat) 180 x 195 x 46.3 mm
Operating condition: Operating temperature: 0 to +45°C, Temp. charging temperature: 5 to +35°C, relative humidity 10 to 80%, non-condensing
Storage condition Temp.: –25 to +70°C Relative humidity 10 to 90%
App support Sennheiser Smart Control app for iOS™ and Android™
Country of Origin Designed by Sennheiser in Germany, Made in China

Battery information
Lithium-Ion cells 1 (single)
Qty (# of batteries for this type) inside product 1
Qty (# of batteries for this type) outside product 0
Vendor: Synergy
MPN : AHB413645PCT
Capacity: 700 mAh
Size/Format Width: 36.0 mm
Height: 48.5 mm
Depth: 4.7 mm
Voltage 3.7 V
Weight 14.5 g
Energy: 2.7 Wh
Lithium content (primary) : 0.219 g

Content
MOMENTUM 4 headphones
Carrying Case
USB-C charging cable
Audio cable 3.5mm and 2.5mm jacks
Airplane adapter