Sennheiser Accentum Open

Got high standards? We hear you. Whether it's party time, me time, hustling, or chilling, Sennheiser’s ACCENTUM Open wireless earbuds have your back with incredible music. Why settle for less? With their open wireless design, you don't have to choose between your tunes and the world around you. Enjoy up to 28 hours of playtime, stay connected and experience fantastic sound with ultimate comfort.

Features

• Sennheiser-tuned sound: Crafted by acoustic experts for rich, detailed sound with clarity and depth. Get ready to be wowed by superior sound.
• All-day playtime – With up to 28 hours of total playtime with the pocket-sized USB-C charging case you’ll run out of energy before your earbuds do!
• Effortless use, no manual needed – Switch between devices effortlessly with multipoint connectivity—calls, music, no fuss. Enjoy smart pause, intuitive touch controls, and pairing with up to 8 devices, all in a simple and ready-to-go design – no manuals, no apps, just press play.
• Stay aware, stay engaged: The open-ear design naturally blends your music with your surroundings for better awareness. No more FOMO – stay in the loop while your music keeps you moving.
• Breathable fit and high comfort: Lightweight, ergonomic stem design stays in place without the pressure or isolation of traditional in-ears.
• Ready for rain or shine: With an IPX4 splash resistance rating, you and your ACCENTUM Open earbuds can handle any weather.

Tuned for superior sound & extra dopamine

Simply great sound, every time.

Treat your ears to the thrill of Sennheiser-tuned sound. With powerful 11 mm dynamic transducers and SBC and AAC audio codec support, ACCENTUM Open earbuds deliver rich, detailed sound.

With open design –– perfect for eavesdropping

Your sounds? Or your world? …why choose?

Flexible, reliable, and always in sync with your life. The open earbud design keeps you tuned into your surroundings – whether you're chatting with friends, staying alert to traffic, or just soaking up the vibes. Your sounds, your choice. Rock both ACCENTUM Open earbuds or just one if you want to stay aware of what's happening around you. Perfect for social butterflies!

All-day play for all-day slay

All-day listening, rain or shine.

With up to 28 hours of total playtime, you'll likely run out of energy before your earbuds do. From the morning commute to after-hours fun, ACCENTUM Open keeps the music rolling without missing a beat. And with IPX4-rated splash and sweat resistance, your wireless earbuds keep performing, rain or shine, no matter what you're up to.

Feel your tunes, not the earbuds

Meet your perfect fit.

With the comfort of barely-there earbuds, ACCENTUM Open earbuds are the perfect choice if you find ear canal designs too insulating or too large to fit securely. Plus, the open-ear stem design means no uncomfortable pressure or ear canal invasions. Your lightweight, breathable earbuds stay in place and feel weightless all day long, with a handy stem that makes them easy to pop in and out whenever you like.

Effortless use, no manual needed

Keep it simple, keep it smart.

Life’s complicated enough already — ACCENTUM Open earbuds keep things simple. Multipoint connectivity lets you seamlessly switch between two devices, so you’re always in sync, whether it’s videos, calls, or music. No need to fumble with settings. Smart touch controls make everything intuitive — no manual required. Smart Pause stops playback the moment you remove an earbud, and the dual beamforming microphones, combined with AI-based noise reduction, ensure crystal-clear calls. Just connect and go. Now that's music to your ears.

Specifications

Wearing style: True wireless stereo earphones
Ear coupling: In-Concha
Connectivity: Bluetooth 5.3 compliant, class 1, 10 mW (max) Bluetooth Classic
Transmission freq/modulation: 2,402 MHz to 2,480 MHz; GFSK, π/4 DQPSK / 8DPSK
Supported profiles: A2DP, AVRCP, HFP
Supported codecs: SBC, AAC
Speaker principle: Dynamic
Speaker type/size: Dynamic, 11mm diameter
Speaker frequency range: 25 Hz to 15 k Hz ( @ 90dBSPL )
Speaker sensitivity: 109 dB SPL (1 kHz / 1 mW)
Speaker THD: <0,08% (1kHz / 94dB)
Speaker impedance: Not applicable (active BT headphones)
Active Noise Cancellation: n/a
Mic principle: MEMS
Mic frequency range: 100 Hz to 10 kHz
Mic pick-up pattern: 2 mics per earbud, beamforming for noise reduction
Battery lifespan: Up to 6 hrs music playtime with earbuds/Up to 24 hrs overall music playtime with charging case (test condition: iPhone, mid volume level 85dB)
Charging time: Approx. 1 hrs for fully charged/After 10 min charging 1 hrs music playtime
Battery type: Built-in Lithium-Ion rechargeable batteries/Earbud: 36mAh(MBT) / 35 mAh(VDL), Charging case: 400 mAh
Power supply: 5 V⎓, 500 mA max/USB charging via USB-C socket at charging case
Weather resistance: IPx4, splash resistant (earbuds only)
Product weight: 38g (both earbuds and charging case)/4.35g (single earbud) / 29.3g (charging case)
Product dimension: 51.77x 50.18 x 25.36 mm (earbuds and charging case)