Sennheiser Accentum True Wireless – In Ear Earbuds

Sennheiser ACCENTUM True Wireless Bluetooth Earbuds

ACCENTUM True Wireless takes it to the next level with Sennheiser's Signature Sound, delivering an ultra-comfy ergonomic design that stays with you all day long. Immersive audio guaranteed for up to 28 hours.

• Award-winning ergonomic design perfected through extensive in-ear scan research
• TrueResponse acoustic technology with 7mm dynamic drivers delivers Sennheiser Signature Sound
• Hybrid Active Noise Cancellation blocks out distractions with adjustable Transparency Mode
• Up to 28 hours total battery life (8 hours earbuds + 20 hours charging case)
• Quick charge provides 1 hour of playback in just 10 minutes
• Bluetooth 5.3 with aptX, AAC, SBC, and LC3 codecs for high-quality audio
• Bluetooth LE Audio and Auracast Broadcast Audio support
• IP54 splash and dust resistant earbuds
• Qi wireless charging and USB-C charging options
• Dual MEMS microphones per earbud with beamforming for crystal-clear calls
• Customizable touch controls and voice assistant access
• Smart Pause automatically stops playback when earbuds are removed
• Available in Black, White, and Blue

Highlights & Key Technologies

Comfort that Moves with You
Indulge in exceptional comfort with ACCENTUM True Wireless' brand-new ergonomic design. Perfected through extensive in-ear scan research and loved by users, the earbuds offer an exceptional fit tailored to your ears. Choose from four ear tip sizes (XS, S, M, L) for a personalized touch, ensuring they sit comfortably and snugly in your ear canal. The award-winning ergonomic shape is designed for extended listening comfort based on real-life in-ear research. Carry them everywhere in a pocket-sized charging case for ultimate on-the-go wireless freedom.

Sound that Feels Magic
Experience astonishing superior sound thanks to the unique TrueResponse transducer engineered by Sennheiser's acoustic experts. Enjoy incredible details created by TrueResponse acoustic technology, developed and manufactured in-house to deliver Sennheiser's high-quality Signature Sound. The 7mm dynamic drivers provide brilliant dynamics, clarity, and musicality across a frequency range of 5 Hz to 21 kHz. The Sennheiser Smart Control App empowers you to curate your sound experience with a 5-band equalizer, presets, sound modes, and Sound Personalization feature. The Sound Check function guides you step by step to create customized equalizer presets for optimal results. Turn up the bass or soften the treble—it's all up to you.

Noise-Free Zone, Anywhere
Turn down the world, turn up the music with Hybrid Active Noise Cancellation. Whether you're on the street, riding the train, or enjoying music in a busy café, ACCENTUM True Wireless' effective Hybrid ANC blocks out distractions so there's no need to pause your playlist. The next generation adaptive technology automatically adjusts to ambient noise so you can stay immersed and hear every detail, even in noisy environments. Wind Noise Reduction can be set to Auto or Max mode to minimize disturbing wind or movement noise. Need to hear your surroundings? Activate Transparency Mode to get back in touch in an instant without removing your earbuds. You can adjust the intensity of both ANC and Transparency Mode for the perfect balance between immersion and awareness.

Powered for Your Lifestyle
Never let your battery dictate your rhythm with 28 hours of battery life and quick charge. With up to 8 hours of playtime from the earbuds (ANC off) and an additional 20 hours from the charging case, ACCENTUM True Wireless will keep your soundtrack going the entire day. The quick charge function gives you approximately 1 hour of music playback after just 10 minutes of charging. Charge via Qi wireless charging pad or USB-C, so you can stay powered up and always ready to go. The Smart Pause function halts playback when the headphones are taken off and automatically resumes when they're back on your ears so you'll never miss a beat.

Tech that Gets You
Experience the latest wireless technologies for flawless performance. Bluetooth 5.3, Bluetooth LE Audio, and Auracast give you cutting-edge connectivity. Auracast technology allows an audio signal from a transmitter to be transmitted to an unlimited number of receiving devices, letting you share tunes with your friend or tune into public broadcasts with ease in museums, conference centers, or public venues. The customizable touch interface gives you fingertip control of audio playback, calls, and voice assistant access. The dual MEMS microphones on each earbud with beamforming array ensure high-quality voice pick-up and automatic wind noise suppression for optimized calls and easier voice assistant access, whether you're on a solo mission or chatting with friends.

Smart Features and App Control
The Sennheiser Smart Control app provides access to all functions and settings of the earbuds. Customize sound using the built-in equalizer with predefined presets, sound modes such as bass boost, or create your own settings. The Sound Personalization feature assesses your listening preferences and adjusts the listening experience according to your taste. Adjust ANC settings including Adaptive mode and Wind Noise Reduction, configure Transparency Mode behavior, manage Bluetooth connections for multipoint connectivity with up to two devices simultaneously, customize touch control functions, adjust Smart Pause sensitivity, activate Eco mode for extended battery life, enable battery protection mode for gentle charging, and install firmware updates. The Fit Test function helps you verify the optimal fit of the earbuds in your ears. Voice prompts and sound signals can be activated or deactivated completely through app settings.

Advanced Connectivity
Connect via Bluetooth 5.3 with support for aptX, AAC, SBC, and LC3 codecs for high-resolution audio. The earbuds can save connection profiles of up to six Bluetooth devices with which they have been paired. Audio playback is only possible from one device at a time, but the multipoint connectivity feature allows automatic connection to the last two Bluetooth devices used. The Low Latency mode reduces the delay between audio and video signals for an enhanced streaming experience. Bluetooth LE Audio support enables advanced features and improved power efficiency. The earbuds automatically switch to Bluetooth pairing mode when first powered on, making initial setup simple and quick.

Built to Last
The earbuds feature an IP54 ingress protection rating, which means they are protected from dust and water splashes. The earbuds can be used in the rain and are splash resistant, though they are not suitable for immersion in water or wearing in the shower. The charging case is not splash waterproof and should be kept dry. Replacement silicone ear tips are available to maintain hygiene and optimal performance over time. The battery protection mode available in the Smart Control app ensures gentle charging to extend battery life, charging the rechargeable batteries only up to approximately 80% capacity. The Eco mode optimizes energy consumption for longer battery life by deactivating aptX transmission and using SBC or AAC codecs exclusively.

Details & Specifications

MODEL INFORMATION
Model: ATW1, ATW1 R, ATW1 L, ATW1 C
Article number (SKU) ACCENTUM True Wireless Black: 700262
Article number (SKU) ACCENTUM True Wireless White: 700263
Article number (SKU) ACCENTUM True Wireless Blue: 700264

DESIGN
Wearing style: True wireless stereo earbuds
Ear coupling: Ear canal

AUDIO PERFORMANCE
Transducer principle: Dynamic
Transducer size: TrueResponse dynamic, 7mm diameter
Frequency response: 5 Hz to 21 kHz
Sound pressure level (SPL): 107 dB (1 kHz/1 mW)
THD (Total Harmonic Distortion): <0.08% (1 kHz/94 dB)
Impedance: Not applicable (active Bluetooth headphones)
Active Noise Cancellation: Hybrid ANC

MICROPHONE
Microphone principle: MEMS
Microphone frequency response: 100 Hz to 10 kHz
Microphone pick-up pattern: 2 microphones per earbud, beamforming array for active noise cancellation

CONNECTIVITY
Bluetooth version: Bluetooth 5.3 compliant, class 1
Bluetooth output power: 10 mW (max)
Transmission frequency: 2,402 MHz to 2,480 MHz
Modulation: GFSK, π/4 DQPSK, 8DPSK
Supported profiles: A2DP, AVRCP, HFP, TMAP, PBP
Supported codecs: SBC, AAC, aptX, LC3
Bluetooth LE Audio: Supported
Auracast Broadcast Audio: Supported
Device name: ACCENTUM TW
Number of active connections: 2

BATTERY AND POWER
Power supply: Built-in lithium-ion rechargeable batteries
Battery capacity left/right earbud: 3.7 V, 55 mAh, 0.204 Wh or 3.8 V, 72 mAh, 0.274 Wh
Battery capacity charging case: 3.7 V, 400-420 mAh, 1.55 Wh max
Input voltage earbuds: 5 V, max 100 mA
Input voltage charging case: 5 V, max 500 mA
Output voltage charging case: 5 V, max 100 mA x 2 (R and L)
USB charging via USB-C socket at charging case: 5 V, 1000 mA max
Qi wireless charging: Supported
Battery time: Up to 8 hrs music playtime with earbuds (ANC off); Up to 6 hrs music playtime with earbuds (ANC on); Up to 28 hrs overall music playtime with charging case (Test condition: iPhone, mid volume level 85dB)
Charging time: Approx. 1.5 hrs for fully charged; After 10 min charging 1 hrs music playtime
Charging time note: Ambient temperatures <15°C or >30°C and Qi wireless charging leads to extended charging times

OPERATING CONDITIONS
Temperature range operation: 0°C to +40°C
Temperature range charging: +5°C to +35°C
Temperature range storage: –20°C to +60°C
Relative humidity operation: 10 to 80%, non-condensing
Relative humidity storage: 10 to 90%

PHYSICAL SPECIFICATIONS
Weight both earbuds and charging case: 52 g
Weight single earbud: 5.5 g
Weight charging case: 41 g
Product dimensions: 49.45 x 51.72 x 28.95 mm (earbuds and charging case)
Magnetic field strength earbuds: 53.7 mT
Magnetic field strength charging case: 101.7 mT
Ingress protection: IP54, splash resistant (earbuds only)

PACKAGE CONTENTS
ACCENTUM True Wireless earbuds (left and right)
Charging case
USB charging cable with USB-C and USB-A connector, length approx. 0.4 m
Silicone ear tips (size XS, S, M pre-mounted, and L)
Quick guide
Safety guide

APP SUPPORT
Sennheiser Smart Control app for iOS and Android

WARRANTY
Warranty: 12 months

COMPLIANCE
General Product Safety Regulation (EU) 2023/988
Battery Regulation (EU) 2023/1542
RoHS Directive (2011/65/EU)
Radio Equipment Directive (2014/53/EU)
RoHS Regulations (2012)
Radio Equipment Regulations (2017)
WEEE Directive (2012/19/EU)
Battery Regulations (2015)
WEEE Regulations (2013)