{"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":"84.55","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0CJBKWF43?maas=maas_adg_api_584955703333686768_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBdd5e46c7ec568c9a30ee9a425b4054a9_118aa7c28ca7&aa_adgroupid=bf5e9933176fbce47d50c59e9b7a33e7_PBSEP_!!!affid!!!_118045_&aa_creativeid=7b1712xniQ7_bdPGmTJgkpEau64FmPe6twSchhtzjh8_ahxjQ_c"}],"product":{"brand":"Fosi Audio-UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/fosi-audio-p3-tube-preamp-headphone-amplifier-home-audio-preamplifier-mini-vacuum-pre-amp-with-bluetooth-aptx-ll-hd-bass-and-treble-tone-controls-for-hifi-stereo-active-speakers-wi-b0cjbkwf43/prices","gtin":null,"id":22486,"model_number":null,"name":"Fosi Audio P3 Tube Preamp Headphone Amplifier Home Audio Preamplifier Mini Vacuum Pre Amp with Bluetooth aptX LL HD Bass and Treble Tone Controls for HiFi Stereo Active Speakers with RCA AUX","product_url":"https://mail.mainbuyer.com/product/fosi-audio-p3-tube-preamp-headphone-amplifier-home-audio-preamplifier-mini-vacuum-pre-amp-with-bluetooth-aptx-ll-hd-bass-and-treble-tone-controls-for-hifi-stereo-active-speakers-wi-b0cjbkwf43","urn":"MB-AWIN-GB-B0CJBKWF43"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"84.55","historical_low":"84.55","last_observed_at":"2026-11-11T04:11:09+00:00","low_30d":"84.55","low_90d":"84.55","median_price":"84.55","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-11-11T04:11:09+00:00"}}