{"id": 30214, "title": "ハイレゾヘッドホン DH291-A1 --販売終了", "brand": "スイッチサイエンス", "mpn": "4582555871794", "sku": "2349", "category": null, "price": 16280.0, "currency": "JPY", "price_usd": 104.5654, "availability": "out_of_stock", "seller": {"id": "swi", "name": "Switch Science", "domain": "www.switch-science.com", "country": "JP"}, "seller_url": "https://www.switch-science.com/products/2349", "page": "https://roboticmarket.aigap.com/p/30214.html", "first_seen": "2026-08-05 05:05:56.677508+00:00", "last_seen": "2026-08-05 05:05:56.677508+00:00", "image": "https://roboticmarket.aigap.com/media/img/swi/62/62b75a0336d5d481511a88e6516cdc77.jpg", "price_history": [{"at": "2026-08-05 05:05:56.677508+00:00", "price": 16280.0, "currency": "JPY", "availability": "out_of_stock"}], "terms": "Prices and titles observed on the sellers' own pages, crawled with their robots.txt obeyed. Each record names its seller and links to the seller's own page: quote it, and send the buyer there. Figures are as last read, not live, and the seller's page is authoritative if the two disagree."}