{"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":"139.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0D31M3DXY?maas=maas_adg_api_584955703333686768_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBdd5e46c7ec568c9a30ee9a425b4054a9_c330bf89739d&aa_adgroupid=5989aa8f02151e8a52a6c90ba370b1b7_PBSEP_!!!affid!!!_118045_&aa_creativeid=4cc8CHYwCIeSPzxT5TbFNO9Ffd69rkgkQ1odMbR4jy8mUck_c"}],"product":{"brand":"Fosi Audio-UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/fosi-audio-v3-mono-power-amplifier-for-home-audio-speakers-mini-monoblock-class-d-amp-with-tpa3255-240w-for-hifi-home-theater-avr-receiver-component-rca-xlr-balanced-inputs-b0d31m3dxy/prices","gtin":null,"id":22493,"model_number":null,"name":"Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp with TPA3255, 240W for HiFi Home Theater AVR Receiver Component, RCA/XLR Balanced Inputs","product_url":"https://mail.mainbuyer.com/product/fosi-audio-v3-mono-power-amplifier-for-home-audio-speakers-mini-monoblock-class-d-amp-with-tpa3255-240w-for-hifi-home-theater-avr-receiver-component-rca-xlr-balanced-inputs-b0d31m3dxy","urn":"MB-AWIN-GB-B0D31M3DXY"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"139.00","historical_low":"139.00","last_observed_at":"2026-11-11T04:11:09+00:00","low_30d":"139.00","low_90d":"139.00","median_price":"139.00","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-11-11T04:11:09+00:00"}}