The Sennheiser Accentum Wireless SE uses an over-ear fit with a closed-back design and stereo speakers, making it suited for immersive personal listening. It weighs 222 g and is not foldable, so it is better suited to home or desk use than compact travel scenarios. The headphone comes with a detachable, tangle-free cable, adding convenience for wired use when needed, though no travel bag is included. It carries no water resistance rating, is not designed for children, and does not support any form of folding for storage.
The Accentum Wireless SE covers a frequency range of 10 Hz to 22,000 Hz through 37 mm drivers, with a sound pressure level of 106 dB/mW. It includes both active noise cancellation and passive noise reduction, giving it two distinct approaches to minimizing unwanted ambient sound. Spatial audio is also supported, broadening the sense of soundstage during playback. The drivers do not use a neodymium magnet.
The Accentum Wireless SE is equipped with an 800 mAh rechargeable battery that delivers 50 hours of playback — a figure that remains the same even with active noise cancellation enabled. Charging is handled via USB Type-C and takes approximately 3 hours to complete. A battery level indicator is included so users can monitor remaining charge at a glance. The battery is built-in and cannot be removed, and neither wireless charging nor solar charging is supported.
The Accentum Wireless SE connects wirelessly via Bluetooth 5.2 and supports a notably broad set of audio codecs, including aptX Adaptive, aptX HD, aptX, and AAC, allowing for flexible high-quality audio transmission across compatible devices. LDAC, aptX Low Latency, and aptX Lossless are not supported. On the pairing side, neither fast pairing, NFC pairing, nor Auracast functionality is available.
The Accentum Wireless SE can function as a headset, supported by two noise-canceling microphones for call and voice use. An ambient sound mode is included, letting users monitor their surroundings without removing the headphones. Controls are handled via an on-device panel on the earcup itself, with no in-line control panel on the cable. The headphones do not feature in/on-ear detection for automatic pause, nor is there a dedicated mute function. The product carries a one-year warranty.