{
  "schema_version": 1,
  "projection": "envoy-agent-v1",
  "identity": {
    "title": "Shure SM58 Dynamic vocal microphone",
    "brand": "Shure",
    "model": null,
    "mpn": null,
    "gtins": null,
    "handle": "gm-shure-sm58-dynamic-vocal-microphone-shure-sm58-dynamic-vocal-microphon-d608e242",
    "url": "https://envoy-music.myshopify.com/products/gm-shure-sm58-dynamic-vocal-microphone-shure-sm58-dynamic-vocal-microphon-d608e242",
    "catalog_product_id": "product_04e3e85ed608e242",
    "lane": "studio",
    "product_object": "microphones"
  },
  "offer": {
    "price": 94.53,
    "currency": "CAD",
    "available": true,
    "condition": "Good",
    "price_band": "entry",
    "source_verified_at": null
  },
  "specifications": {"category":"Pro Audio","subcategory":"Microphones","category_path":"Pro Audio \/ Microphones","groups":[{"id":"core","label":"Microphone","fields":[{"key":"mic_type","label":"Type","value":"dynamic","unit":"","display":"Dynamic (moving coil)","filterable":true,"source":"https:\/\/www.shure.com\/en-US\/products\/microphones\/sm58","confidence":0.99},{"key":"polar_pattern","label":"Polar pattern","value":"cardioid","unit":"","display":"Cardioid","filterable":true,"source":"https:\/\/www.shure.com\/en-US\/products\/microphones\/sm58","confidence":0.99},{"key":"frequency_response","label":"Frequency response","value":"50-15000","unit":"Hz","display":"50 Hz – 15 kHz","filterable":false,"source":"https:\/\/www.shure.com\/en-US\/products\/microphones\/sm58","confidence":0.98},{"key":"sensitivity","label":"Sensitivity","value":-56.0,"unit":"dBV\/Pa","display":"-56 dBV\/Pa (1.6 mV) @ 1 kHz","filterable":false,"source":"https:\/\/www.shure.com\/en-US\/products\/microphones\/sm58","confidence":0.97},{"key":"output_impedance","label":"Output impedance","value":300,"unit":"ohm","display":"300 Ω","filterable":false,"source":"https:\/\/www.shure.com\/en-US\/products\/microphones\/sm58","confidence":0.98},{"key":"connector","label":"Connector","value":"XLR","unit":"","display":"XLR (3-pin)","filterable":false,"source":"https:\/\/www.shure.com\/en-US\/products\/microphones\/sm58","confidence":0.98},{"key":"phantom_required","label":"Phantom power required","value":false,"unit":"","display":"No","filterable":false,"source":"https:\/\/www.shure.com\/en-US\/products\/microphones\/sm58","confidence":0.99}]}]},
  "connectivity": ["xlr"],
  "power": null,
  "included_items": null,
  "required_accessories": ["appropriate cables","monitoring solution","mount or stand if relevant"],
  "optional_accessories": null,
  "compatibility": null,
  "advisor": {
    "best_for": null,
    "who_should_skip": null,
    "fit_notes": "Best suited to players who have outgrown their first setup and need a meaningful step up.\n\nWho it is for: Shoppers who already understand the role of this pro audio and want a more deliberate purchase.\n\nWho should skip it: Skip it if you are still figuring out the basics and need the simplest possible first purchase path.",
    "watchouts": null,
    "verification_questions": ["Can you confirm exactly what is included in the sale and show it in current photos?","Are there any functional issues, repairs, or missing parts not shown in the listing?","Can you provide close-up photos of wear points, serial numbers, and any modifications?","Can you confirm the core specs that matter for compatibility in this setup?","Is this still available and has anything changed since the listing was posted?"]
  },
  "retrieval": {
    "summary": "Shure SM58 Dynamic vocal microphone. Shure. SM58 Dynamic vocal microphone. Pro Audio. Pro Audio \/ Microphones. available from reverb. price range 69 USD. condition Good. In the Chicago area? Stop by our shop at 3350 N Milwaukee Avenue in the Avondale neighborhood of Chicago, IL. We buy, sell, trade, rent rare and rad gear as well as offer guitar, bass, amp and electronics repair Shure SM58 Dynamic vocal microphone Power Requirement: None. This mic is passive Extras: Comes with original carry case and cable tie. No mic clip, windscreen, etc is included Modifications\/Repairs: None Cosmetic Condition: Good with a dent in the grill and some very light marks elsewhere. 7.5 out of 10 Operational condition: Fully-functioning Description from Shure: The most used vocal mic in the world! You're gonna want two, three, maybe four of these workhorses in your mic stable. Shure SM58 Dynamic vocal microphone. Shure. SM58 Dynamic vocal microphone. . Good. Pro Audio. Pro Audio \/ Microphones. In the Chicago area? Stop by our shop at 3350 N Milwaukee Avenue in the Avondale neighborhood of Chicago, IL. We buy, sell, trade, rent rare and rad gear as well as offer guitar, bass, amp and electronics repair Shure SM58 Dynamic vocal microphone Power Requirement: None. This mic is passive Extras: Comes with original carry case and cable tie. No mic clip, windscreen, etc is included Modifications\/Repairs: None Cosmetic Condition: Good with a dent in the grill and some very light marks elsewhere. 7.5 out of 10 Operational condition: Fully-functioning Description from Shure: The most used vocal mic in the world! You're gonna want two, three, maybe four of these workhorses in your mic stable. Rare Birds Music. Chicago, IL, United States. tags source:reverb family:pro_audio listing_status:live brand:shure model:sm58_dynamic_vocal_microphone category:pro_audio_microphones price_band:entry segment:intermediate condition:good has:photos has:videos",
    "agent_summary": "Shure SM58 Dynamic vocal microphone is a aimed at intermediate players pro audio listing with marketplace-sourced data. Shure SM58 Dynamic vocal microphone currently sits around 69 USD. In the Chicago area? Marketplace data is richer on listing context, but it needs more buyer verification. Good visual coverage for spot-checking the item. Marketplace listing quality varies by seller, so condition and included items still need verification.",
    "intent_terms": ["Shure SM58 Dynamic vocal microphone","Shure","SM58 Dynamic vocal microphone","Pro Audio","Pro Audio \/ Microphones","brand:shure","category:pro_audio_microphones","condition:good","family:pro_audio","has:photos","has:videos","listing_status:live","model:sm58_dynamic_vocal_microphone","price_band:entry","segment:intermediate","source:reverb","brand shure","category pro audio microphones","condition good","family pro audio","has photos","has videos","listing status live","model sm58 dynamic vocal microphone","price band entry","segment intermediate","source reverb","home-recording","content-creation","practice","starter-rig","live-performance","tone-shaping","signal-chain","Rare Birds Music","Best suited to players who have outgrown their first setup and need a meaningful step up.","Shoppers who already understand the role of this pro audio and want a more deliberate purchase."],
    "use_cases": ["live-performance","studio-recording","practice"],
    "skill_level": "beginner"
  },
  "trust": {
    "has_verified_retail_listing": true,
    "source_count": 1,
    "source_tier_mix": ["marketplace"],
    "evidence_flags": {"has_description":true,"has_images":true,"has_reviews":false,"has_specs":false,"source_count":1},
    "spec_provenance": {"specifications":{"source_url":"https:\/\/www.shure.com\/en-US\/products\/microphones\/sm58","method":"manufacturer_datasheet","fetched":"2026-07-19"}}
  },
  "related": {
    "similar_item_ids": ["product_0b47707fa7c2857f","product_d999817715bd0554","product_a2a4a1d3ad722169","product_e285a982f7c42948","product_15b779600fcf52f2","product_d7b26e4eaa86a617","product_982aba87bf32f29f","product_ab13895c12ea05ca"],
    "comparison_reasons": ["source_count:1","family:Pro Audio","marketplace_only","identity_confidence:0.9"]
,
    "related_products": [{ "title": "Shure SM7B Cardioid Dynamic Microphone w\/XLR", "url": "https://envoy-music.myshopify.com/products/gm-shure-sm7b-cardioid-dynamic-microphone-shure-sm7b-cardioid-dynamic-mic-ad722169", "handle": "gm-shure-sm7b-cardioid-dynamic-microphone-shure-sm7b-cardioid-dynamic-mic-ad722169" },{ "title": "Vintage 1980s Shure PE66L *Serviced* Microphone (SM57 Unidyne III) - Shure's Pro Line Made in USA", "url": "https://envoy-music.myshopify.com/products/gm-shure-unidyne-iii-sm57-cardioid-dynamic-microphone-vintage-1980s-shure-bf32f29f", "handle": "gm-shure-unidyne-iii-sm57-cardioid-dynamic-microphone-vintage-1980s-shure-bf32f29f" },{ "title": "Shure Vintage PE5EQ Microphone 1970s", "url": "https://envoy-music.myshopify.com/products/gm-shure-vintage-pe5eq-microphone-shure-vintage-pe5eq-microphone-1970s-12ea05ca", "handle": "gm-shure-vintage-pe5eq-microphone-shure-vintage-pe5eq-microphone-1970s-12ea05ca" }]}
}