Sennheiser Accentum Wireless Headband, Black

50-hour freedom with true Sennheiser tone—anywhere you go

Tired of battery anxiety, muddled mids, and bulky cans that wear you out before the album’s over? Accentum Wireless delivers the long-haul listening you crave, the musicality Sennheiser is known for, and the modern conveniences that make daily listening effortless. You get hybrid active noise cancellation for the commute, a tuning that leans musical and inviting, and a featherweight fit that disappears on your head—so your focus stays on the music, not the gear. Up to 50 hours on a single charge means your playlists outlast your week.

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Why Audiophiles Choose This Product

• • Sound quality: Engaging, slightly warm, bass-leaning presentation with good cohesion—easily refined via Sennheiser’s Smart Control app (5‑band EQ plus Bass Boost/Podcast modes). Reviewers note an energetic low end out of the box that benefits from EQ if you prefer a more neutral take.
• • Engineering: Purpose-built 37 mm dynamic transducers designed and produced in-house, Bluetooth 5.2 with aptX and aptX HD support, and hybrid ANC—practical, proven tech that prioritizes reliable fidelity on the move.
• • Practicality and comfort: About 222 g with plush pads and a light, ergonomic clamp—great for extended sessions; physical buttons for confident, glove-friendly control.
• • Compatibility and versatility: Multipoint keeps you connected to phone and laptop; AAC for iOS, aptX/aptX HD for many Android/PC sources; plus wired digital listening over USB‑C when you want to skip Bluetooth compression.
• • What sets it apart: Class-leading stamina (up to 50 hours), quick-charge convenience (about 5 hours from 10 minutes), and USB‑C audio in a compact, travel‑ready build—rare at this level.

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What’s Included

• • Accentum Wireless (Black) over‑ear headphones — Model no. 700174
• • USB‑C charging cable
• • Quick start guide and user documentation
  Note: No carry case is included.

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Technical Specifications

Specification	Value	Notes
Product Type	Bluetooth wireless over‑ear headphones	Headband, circumaural
Driver	37 mm dynamic	In‑house Sennheiser transducer design for consistent voicing.
Noise Cancellation	Hybrid ANC + Transparency	Reduce distractions; blend in outside sound when needed.
Bluetooth	5.2, Class 1 (10 mW max)	Stable, long‑range connection.
Codecs	SBC, AAC, aptX, aptX HD	Broad device compatibility and higher‑quality options.
Profiles	A2DP, AVRCP, HFP, HSP, GATT	Works with phones, tablets, and computers.
Multipoint	Yes	Stay connected to two devices at once.
Battery Life	Up to 50 hours (Bluetooth + ANC)	Weekend‑proof stamina.
Fast Charge	~5 hours play from 10 minutes	Quick top‑ups between meetings or flights.
Full Charge Time	Approx. 3 hours	Via USB‑C.
Wired Listening	USB‑C audio (digital)	Bypass Bluetooth compression; no 3.5 mm jack.
Microphones	Dual beamforming MEMS	Clear calls with wind‑reduction features and sidetone control.
Frequency Response	10 Hz – 22 kHz	Wide-band dynamic driver response.
Weight	~222 g	Light for all‑day comfort.

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Professional Recognition

• • Reviews:
  • “One of the best value buys on the market at the moment,” noting strong comfort, excellent stamina, and aptX/aptX HD—while ANC and mic noise rejection are decent rather than class‑leading.
  • RTINGS highlights long battery life, multipoint, and app EQ; describes the default tuning as bass‑heavy with less treble detail—easily personalized via the 5‑band EQ.
  • What Hi‑Fi? praises the clean, cohesive presentation and 50‑hour battery, while wishing for more punch and a carry case.
• • Heritage: Sennheiser’s in‑house transducer engineering underpins the Accentum’s signature sound and consistency.
• • Innovation in the category: USB‑C audio support and swift 10‑minute top‑ups add practical flexibility uncommon at this tier.

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The Bottom Line

Accentum Wireless is the dependable daily driver audiophiles can recommend without caveats: a musical, comfort‑first over‑ear with real‑world stamina, hybrid ANC, and flexible connectivity that includes USB‑C audio when you want to avoid Bluetooth compression. Expect a warm‑leaning, easy‑listening balance out of the box—then tailor it in seconds with Sennheiser’s EQ to land on your ideal signature. No frills, no fuss, just the essentials executed with Sennheiser polish. If you value long battery life, effortless usability, and trustworthy sound above gimmicks, Accentum Wireless belongs on your short list.

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Product‑specific notes for wireless headphones

• Connectivity: Fully wireless via Bluetooth (with multipoint) and optional wired digital listening over USB‑C. No 3.5 mm analog input.
• Sound signature: Warm‑tilted, bass‑forward baseline; tune easily toward neutral with the Smart Control 5‑band EQ.
• Comfort: Low weight and soft padding support extended sessions; ear cups do not fold for storage and no carry case is included.

Note: Specifications and features are sourced from Sennheiser’s official materials and corroborated by professional reviews to ensure accuracy. Regional packaging and documentation may vary.