{"dataset":"MainBuyer UK price observations","market":"GB","market_name":"United Kingdom","methodology":"Each observation is stored only when MainBuyer has a timestamped checked retailer offer. Missing days are not interpolated or invented. Historical low, high and median figures use recorded in-stock observations only.","observations":[{"currency":"GBP","in_stock":true,"observed_at":"2026-10-04T03:09:40+00:00","price":"449.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0FD2RKN7P?maas=maas_adg_api_583671915767986300_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB0fe2d6be49a2c753038ff135e9910b4c&aa_adgroupid=d639a57b976118e8303e0df84e783251_PBSEP_!!!affid!!!_118045_&aa_creativeid=2fe7QMZXqnWfhV2V9qusMfEpl3H2WC9ChhKtsknzodNf6I0_c"}],"product":{"brand":"WiiM UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/wiim-sub-pro-smart-wireless-subwoofer-with-roomfit-bass-black-b0fd2rkn7p/prices","gtin":null,"id":16647,"model_number":null,"name":"WiiM Sub Pro Smart Wireless Subwoofer with RoomFit\u00e2?\u00a2 Bass, Black","product_url":"https://mail.mainbuyer.com/product/wiim-sub-pro-smart-wireless-subwoofer-with-roomfit-bass-black-b0fd2rkn7p","urn":"MB-AWIN-GB-B0FD2RKN7P"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"449.00","historical_low":"449.00","last_observed_at":"2026-10-04T03:09:40+00:00","low_30d":"449.00","low_90d":"449.00","median_price":"449.00","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-10-04T03:09:40+00:00"}}