ホワイトノイズ箱 is a Japanese app offering 37 types of white noise and ambient sounds, allowing users to mix, save presets, and set sleep timers. It supports background playback and fade-out, helping users relax, focus, or sleep better.
ホワイトノイズ箱 is a Lifestyle & Personal product. It helps users improve sleep quality, focus, and relaxation by providing customizable white noise and ambient sound mixes. It is built as a consumer product for individuals seeking better sleep or focus. ホワイトノイズ箱 is a paid product starting at $1. It runs on the web and iOS.
It is developed by SANWA Inc. (United States), and the product first shipped in 2026. Key capabilities include 37 sound types, sound mixing, and preset saving.
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