{"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":"2026-11-11T04:11:10+00:00","price":"229.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0G5Z5RH7R?maas=maas_adg_api_584955703333686768_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBdd5e46c7ec568c9a30ee9a425b4054a9_ece7440186e2&aa_adgroupid=b883c6de54e38abbc048c112fac5ec3c_PBSEP_!!!affid!!!_118045_&aa_creativeid=6be3GtXnvGNXRB7Sp745SqD9aVOWZpcZ7zqxRMpKz3VWUXw_c"}],"product":{"brand":"Fosi Audio-UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/fosi-audio-bt20a-max-stereo-amplifier-hifi-bluetooth-6-0-power-amp-with-pffb-technology-2-1-channel-300w-x-2-max-2-rca-input-subwoofer-output-remote-control-eq-control-bypas-b0g5z5rh7r/prices","gtin":null,"id":22522,"model_number":null,"name":"Fosi Audio BT20A MAX Stereo Amplifier HiFi, Bluetooth 6.0 Power Amp with PFFB Technology, 2.1 Channel 300W x 2 Max, 2 RCA Input, Subwoofer Output, Remote Control, EQ Control, Bypass, HPF, 12","product_url":"https://mail.mainbuyer.com/product/fosi-audio-bt20a-max-stereo-amplifier-hifi-bluetooth-6-0-power-amp-with-pffb-technology-2-1-channel-300w-x-2-max-2-rca-input-subwoofer-output-remote-control-eq-control-bypas-b0g5z5rh7r","urn":"MB-AWIN-GB-B0G5Z5RH7R"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"229.00","historical_low":"229.00","last_observed_at":"2026-11-11T04:11:10+00:00","low_30d":"229.00","low_90d":"229.00","median_price":"229.00","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-11-11T04:11:10+00:00"}}