{"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":"2026-11-11T04:11:09+00:00","price":"113.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0CYQ1B598?maas=maas_adg_api_584955703333686768_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBdd5e46c7ec568c9a30ee9a425b4054a9_8a24fe65a1f9&aa_adgroupid=1d3e149af56e1558086d1f07631a6b29_PBSEP_!!!affid!!!_118045_&aa_creativeid=1750yKcx8phGPPPXSwa_bQj3KkLUoqSjC5kKXTkjPm9xMgvY_c"}],"product":{"brand":"Fosi Audio-UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/fosi-audio-ht4s-bluetooth-amplifier-for-outdoor-speakers-4-channel-power-amp-for-bass-shaker-sim-racing-cockpit-4-1-5-0-ch-stereo-home-audio-receiver-supports-aux-optical-input-b0cyq1b598/prices","gtin":null,"id":22492,"model_number":null,"name":"Fosi Audio HT4S Bluetooth Amplifier for Outdoor Speakers, 4 Channel Power Amp for Bass Shaker Sim Racing Cockpit, 4.1/5.0 Ch Stereo Home Audio Receiver, Supports AUX/Optical Input with Remot","product_url":"https://mail.mainbuyer.com/product/fosi-audio-ht4s-bluetooth-amplifier-for-outdoor-speakers-4-channel-power-amp-for-bass-shaker-sim-racing-cockpit-4-1-5-0-ch-stereo-home-audio-receiver-supports-aux-optical-input-b0cyq1b598","urn":"MB-AWIN-GB-B0CYQ1B598"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"113.00","historical_low":"113.00","last_observed_at":"2026-11-11T04:11:09+00:00","low_30d":"113.00","low_90d":"113.00","median_price":"113.00","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-11-11T04:11:09+00:00"}}