{"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":"2026-09-18T08:30:06+00:00","price":"900.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0DPM4TPWF?maas=maas_adg_api_593479520834513908_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB7bebd87d1125fc8509144c73a18adb14&aa_adgroupid=b7d5d97b6dc67796ca927158395121fb_PBSEP_!!!affid!!!_118045_&aa_creativeid=955498ZbbcEtafdBBuAYIQAcdJdWu7YLBgNjrwv0orghGRs_c"}],"product":{"brand":"Hollyland-UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/hollyland-cosmo-c2-wireless-hdmi-sdi-transmitter-and-receiver-1000m-range-33ms-latency-1080p60-5g-seamless-frequency-hopping-embedded-ndi-uvc-rtmp-l-b0dpm4tpwf/prices","gtin":null,"id":13492,"model_number":null,"name":"Hollyland Cosmo C2 Wireless HDMI SDI Transmitter and Receiver, 1000m Range 33ms Latency 1080p60 5G Seamless Frequency Hopping, Embedded NDI UVC RTMP L","product_url":"https://mail.mainbuyer.com/product/hollyland-cosmo-c2-wireless-hdmi-sdi-transmitter-and-receiver-1000m-range-33ms-latency-1080p60-5g-seamless-frequency-hopping-embedded-ndi-uvc-rtmp-l-b0dpm4tpwf","urn":"MB-AWIN-GB-B0DPM4TPWF"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"900.00","historical_low":"900.00","last_observed_at":"2026-09-18T08:30:06+00:00","low_30d":"900.00","low_90d":"900.00","median_price":"900.00","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-18T08:30:06+00:00"}}