nwm（ヌーム）【延長保証版】 オープンイヤー 型 オーバーヘッド 耳スピーカー nwm ONE | 耳をふさがない ヘッドホン 透明 スケルトン モデル 耳スピ Bluetooth 5.3 マルチポイント対応 電池持続20時間 NTT sonority ファントムグレイ 2025年発売

The nwm ONE from NTT sonority is a bold reimagining of what headphones can be. Released in 2025, this open-ear overhead headphone combines transparent skeletal design with cutting-edge audio technology to deliver a premium listening experience that doesn't require sealing your ears shut. **Design and Comfort** The nwm ONE immediately stands out with its Phantom Gray transparent skeleton body, featuring what nwm calls a "Dual Loop Design" that fuses your personal audio with the sounds of the world around you. Despite being an over-head form factor, it deliberately avoids sealing the ear, resulting in minimal clamping pressure and zero stuffiness. At approximately 185 grams, it's remarkably lightweight for an overhead headphone, reducing strain on the head and neck during extended use. The brand promises comfort so natural you'll forget you're wearing it — a critical advantage for all-day use during remote work or long listening sessions. **Sound Quality and Core Technology** At the heart of the nwm ONE sits a newly developed 2-way driver system: a φ12mm tweeter driver for extended highs and a φ35mm woofer driver for clean, low-distortion bass. Each driver is powered by its own dedicated amplifier, with intelligent DSP processing ensuring distortion-free playback even at high volumes. The result is what nwm describes as a wide frequency range with the spacious, open soundstage that only open-ear designs can deliver. What truly sets the nwm ONE apart are two proprietary NTT technologies deployed together for the first time in the brand's history. The "PSZ (Personalized Sound Zone)" technology confines sound to your ears despite the open design, significantly reducing sound leakage. Meanwhile, "Magic Focus Voice," a patented NTT technology, isolates your voice from ambient noise during calls and online meetings, ensuring the person on the other end hears you clearly. **Features and Connectivity** The nwm ONE supports Bluetooth 5.3 with multipoint connectivity, allowing simultaneous connection to multiple devices. It also supports 360 Reality Audio and next-generation Bluetooth standards including LE Audio and Auracast. Beyond wireless, you can connect via the included USB Type-C cable for USB audio, making it versatile for both mobile and desktop use. The dedicated "nwm Connect" app offers parametric equalizer adjustments for personalized sound tuning. **Battery Life** Battery performance is impressive at up to 20 hours of continuous playback. A quick 5-minute charge provides 1 hour of listening time — a lifesaver when you're in a rush. **Verdict** Priced at ¥39,368 on Amazon.co.jp, the nwm ONE positions itself firmly in the premium segment. However, it backs that price with a compelling combination of NTT's proprietary audio technologies, a thoughtfully engineered 2-way driver system, all-day battery life, and a strikingly unique transparent design. For anyone seeking an open-ear headphone that doesn't compromise on sound quality or call clarity, the nwm ONE represents a genuinely innovative option in the 2025 audio landscape.