{"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":"2026-09-17T12:29:27+00:00","price":"29.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0CJCBHNCJ?maas=maas_adg_api_577553284735287735_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB8f69ba3fb0b68ffb0bd3374755f63aa6&aa_adgroupid=f274dc22da4a93ab35d1c39768828d43_PBSEP_!!!affid!!!_118045_&aa_creativeid=1a85jVScW_ai6rbDvYo5yEeHQ8CE3axGZ13VZ4eBciwomCo0_c"}],"product":{"brand":"Hotmoon UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/hotmoon-white-noise-machine-cocoon-2-40-sounds-dual-speaker-mains-power-b0cjcbhncj/prices","gtin":null,"id":11227,"model_number":null,"name":"Hotmoon White Noise Machine, Cocoon 2, 40 Sounds, Dual-Speaker, Mains Power","product_url":"https://mail.mainbuyer.com/product/hotmoon-white-noise-machine-cocoon-2-40-sounds-dual-speaker-mains-power-b0cjcbhncj","urn":"MB-AWIN-GB-B0CJCBHNCJ"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"29.99","historical_low":"29.99","last_observed_at":"2026-09-17T12:29:27+00:00","low_30d":"29.99","low_90d":"29.99","median_price":"29.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:29:27+00:00"}}