{"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":"189.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0DMVKJGWV?maas=maas_adg_api_584955703333686768_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBdd5e46c7ec568c9a30ee9a425b4054a9_a7abc28216e7&aa_adgroupid=b7042cc727b52238497488a598319e3c_PBSEP_!!!affid!!!_118045_&aa_creativeid=3f10ksoP1at_afWngjrgn_bL2AY1tDEeHnJHAvRvdT6JgGyko_c"}],"product":{"brand":"Fosi Audio-UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/fosi-audio-k7-dac-headphone-amplifier-up-to-pcm-384khz-32bit-usb-c-bluetooth-aptx-hd-ll-optical-coaxial-mic-input-4-4mm-balanced-3-5mm-rca-output-for-pc-ps5-desktop-gaming-worksp-b0dmvkjgwv/prices","gtin":null,"id":22501,"model_number":null,"name":"Fosi Audio K7 DAC Headphone Amplifier up to PCM 384kHz/32bit, USB C/Bluetooth aptX HD LL/Optical/Coaxial/Mic Input, 4.4mm Balanced/3.5mm/RCA Output for PC PS5 Desktop Gaming Workspace","product_url":"https://mail.mainbuyer.com/product/fosi-audio-k7-dac-headphone-amplifier-up-to-pcm-384khz-32bit-usb-c-bluetooth-aptx-hd-ll-optical-coaxial-mic-input-4-4mm-balanced-3-5mm-rca-output-for-pc-ps5-desktop-gaming-worksp-b0dmvkjgwv","urn":"MB-AWIN-GB-B0DMVKJGWV"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"189.00","historical_low":"189.00","last_observed_at":"2026-11-11T04:11:09+00:00","low_30d":"189.00","low_90d":"189.00","median_price":"189.00","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-11-11T04:11:09+00:00"}}