The launch and the numbers behind the limited edition
Edifier (漫步者) will put the W900NB over-ear Bluetooth headphones, in a 30th-anniversary version, on sale starting this evening at 20:00 for 1,159 yuan, according to IT之家. The run is limited to 3,000 packages, and each unit bears an engraved serial number. Three colorways are planned: morning mist white, night black, and deep sea blue.
The most significant commercial fact is the combination of price and scarcity: this is a celebratory product, not a model intended for mass distribution. The source does not indicate which markets will receive the 3,000 units or how they will be allocated, an element that remains to be verified.
Technical specifications: dual drivers and a chip with an NPU
According to the specification sheet reported by the source, the headphones use a two-unit configuration: a 10 mm titanium-plated PET tweeter and a 40 mm mid-bass driver made of double-layer PEEK composite aerospace fiber. The system exceeds Hi-Res, Hi-Res Wireless and HWA certifications and uses the LHDC 5.0 codec, with support up to 192 kHz/24 bit.
On the noise-reduction front, the product is equipped with 8 wide-range microphones: 6 front-feed microphones arranged in a ring and 2 feedback microphones, for a declared cancellation depth of -50 dB. The processor is a 6-core heterogeneous chip manufactured at 6 nm, with an integrated Arm Ethos U55 NPU for AI processing of the voice signal. Six-axis head tracking is also included, with Dolby Atmos support.
The point to clarify is that these are manufacturer-declared figures, reported by the source, not independent measurements: in particular, the -50 dB depth should be compared with third-party tests, which are not currently cited.
Battery life and charging times
Battery life varies depending on the codec and use of active noise cancellation. With SBC encoding and active noise reduction, the source indicates 42 hours, rising to 110 hours with the function disabled. Switching to LHDC, the figures fall to 33 and 73 hours respectively. Fast charging is included: according to the spec sheet, 15 minutes plugged in provides 17 hours of listening.
The gap between the two encoding modes is wide and suggests that maximum performance is achieved by sacrificing audio quality or noise cancellation; the source does not specify the conditions under which these values were measured.
What remains to be established
The material does not contain indications about availability outside the Chinese market, warranty, or any differences among the three colorways. No previous sales data or comparisons with other models from the same company are reported. The technical information should therefore be attributed to IT之家 and, by extension, to the manufacturer's statements.
