{
  "schema_version": 1,
  "projection": "envoy-agent-v1",
  "identity": {
    "title": "ROLAND E-4 | Voice Tweaker | Aira Compact Vocal Effector \u0026 Looper",
    "brand": "ROLAND",
    "model": null,
    "mpn": null,
    "gtins": null,
    "handle": "gm-roland-roland-x20-e-4-x20-x7c-x20-voice-x20-tweaker-x20-x7c-x20-aira-x-d0ae5649",
    "url": "https://envoy-music.myshopify.com/products/gm-roland-roland-x20-e-4-x20-x7c-x20-voice-x20-tweaker-x20-x7c-x20-aira-x-d0ae5649",
    "catalog_product_id": "product_153418add0ae5649",
    "lane": "pedals",
    "product_object": null
  },
  "offer": {
    "price": 289.99,
    "currency": "CAD",
    "available": true,
    "condition": null,
    "price_band": "high",
    "source_verified_at": null
  },
  "specifications": {"category":"Effects and Pedals","subcategory":"Effects and Pedals","category_path":"Effects and Pedals"},
  "connectivity": null,
  "power": null,
  "included_items": null,
  "required_accessories": ["power supply or battery","instrument cables"],
  "optional_accessories": null,
  "compatibility": null,
  "advisor": {
    "best_for": null,
    "who_should_skip": null,
    "fit_notes": "More appropriate for experienced buyers who already know the role this piece of gear needs to play.\n\nWho it is for: Shoppers who already understand the role of this effects and pedals 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 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": "ROLAND\u0026#x20;E-4\u0026#x20;\u0026#x7C;\u0026#x20;Voice\u0026#x20;Tweaker\u0026#x20;\u0026#x7C;\u0026#x20;Aira\u0026#x20;Compact\u0026#x20;Vocal\u0026#x20;Effector\u0026#x20;\u0026\u0026#x20;Looper. ROLAND. . Effects and Pedals. Effects and Pedals. available from tom lee music. price range 289.99 CAD. condition new. E-4 VOICE TWEAKER A VOCALIST’S BEST FRIEND The E-4 Voice Tweaker is an outrageously jammable box of fun that harmonizes, auto-pitches, vocodes, loops, and glitches your voice and anything else you feed it. Flip through hands-on controls to manipulate the sound, and chain in AIRA Compacts and other electronic instruments and let them ride in perfect sync. INSPIRING ROLAND VOCAL PROCESSING The E-4 combines powerful voice transformer tools and standard vocal effects with a tactile interface that’s meant to be played. This lean, mean machine puts a treasure trove of top-quality processing in a go-everywhere gadget that’s endlessly enjoyable and amazingly affordable. HARMONIC EXPLORER Take your singing to the next level with automatic harmony effects. Set the key and chord voicing on the fly and bring head-turning flair to any song. And with Auto Pitch, you can dial in everything from subtle tuning fixes to the hard-tuned sounds heard in mainstream pop tracks. LOOP AND SCATTER Turn one voice into an entire orchestra using the 24-second looper. Overdub layer after layer with the E-4's effects to create wild, vocal-driven rides. Then slice and dice with the expressive Scatter knob, which chops your sound into colorful bits that you control with a twist. CHANNEL YOUR INNER ROBOT Use direct-access tools to instantly change your vocal gender, conjure sounds from outer space, or transform yourself into a mechanical persona (good or evil is up to you). There’s also a powerful vocoder, which you can drive from a large pool of onboard synth waveforms, the E-4’s pitch functions, or an external MIDI keyboard for an endless variety of textures. LINK UP AND GO Connect a handheld mic to the front input for performing, or use a gaming headset or the inline mic on your earbuds to bring fresh vocal fun to your next livestream or podcast. Sync with other AIRA Compacts like the T-8 Beat Machine and J-6 Chord Synthesizer to expand your range. Or interface with computer DAWS, mobile music apps, and hardware instruments via USB-C or MIDI. EVERYWHERE AT ONCE The E-4 creatively accentuates vocals anytime and anywhere. The lithium-ion battery provides up to 3.5 hours of power per charge, and the rugged Roland build will support inspired magic and mayhem for a long, long time. SPECIFICATIONS Effect Type AUTO PITCH HARMONY VOCODER PITCH FORMANT SCATTER REVERB LOOPER Maximum Recording Time Approximately 24 seconds Display 7 segments, 4 characters (LED) Connectors SYNC (IN, OUT) jacks: Miniature phone type MIX (IN, OUT) \/ HEADSET jacks: Stereo miniature phone type (Stereo, CTIA) MIDI (IN, OUT) jacks: Stereo miniature phone type MIC IN jack: Stereo phone type USB port: USB Type-C® (Audio, MIDI) Power Supply Rechargeable lithium-ion battery Obtained via USB port (USB bus power) Current Draw 500 mA Expected battery life under continuous use Approx. 3.5 hours * These figures will vary depending on the actual conditions of use. Expected battery charging time Approx. 3 hours * To charge the unit, use the USB port of a computer or a commercially available USB power supply adaptor (5 V, 500 mA or higher). Accessories Leaflet ”Read Me First” USB Type-C to USB Type-A cable SIZE AND WEIGHT Width 188 mm 7-7\/16 inches Depth 106.5 mm 4-1\/4 inches Height 41.7 mm 1-11\/16 inches Weight (including batteries) 290 g 11 oz. ROLAND\u0026#x20;E-4\u0026#x20;\u0026#x7C;\u0026#x20;Voice\u0026#x20;Tweaker\u0026#x20;\u0026#x7C;\u0026#x20;Aira\u0026#x20;Compact\u0026#x20;Vocal\u0026#x20;Effector\u0026#x20;\u0026\u0026#x20;Looper. ROLAND. Effects and Pedals. Effects and Pedals. E-4 VOICE TWEAKER A VOCALIST’S BEST FRIEND The E-4 Voice Tweaker is an outrageously jammable box of fun that harmonizes, auto-pitches, vocodes, loops, and glitches your voice and anything else you feed it. Flip through hands-on controls to manipulate the sound, and chain in AIRA Compacts and other electronic instruments and let them ride in perfect sync. INSPIRING ROLAND VOCAL PROCESSING The E-4 combines powerful voice transformer tools and standard vocal effects with a tactile interface that’s meant to be played. This lean, mean machine puts a treasure trove of top-quality processing in a go-everywhere gadget that’s endlessly enjoyable and amazingly affordable. HARMONIC EXPLORER Take your singing to the next level with automatic harmony effects. Set the key and chord voicing on the fly and bring head-turning flair to any song. And with Auto Pitch, you can dial in everything from subtle tuning fixes to the hard-tuned sounds heard in mainstream pop tracks. LOOP AND SCATTER Turn one voice into an entire orchestra using the 24-second looper. Overdub layer after layer with the E-4's effects to create wild, vocal-driven rides. Then slice and dice with the expressive Scatter knob, which chops your sound into colorful bits that you control with a twist. CHANNEL YOUR INNER ROBOT Use direct-access tools to instantly change your vocal gender, conjure sounds from outer space, or transform yourself into a mechanical persona (good or evil is up to you). There’s also a powerful vocoder, which you can drive from a large pool of onboard synth waveforms, the E-4’s pitch functions, or an external MIDI keyboard for an endless variety of textures. LINK UP AND GO Connect a handheld mic to the front input for performing, or use a gaming headset or the inline mic on your earbuds to bring fresh vocal fun to your next livestream or podcast. Sync with other AIRA Compacts like the T-8 Beat Machine and J-6 Chord Synthesizer to expand your range. Or interface with computer DAWS, mobile music apps, and hardware instruments via USB-C or MIDI. EVERYWHERE AT ONCE The E-4 creatively accentuates vocals anytime and anywhere. The lithium-ion battery provides up to 3.5 hours of power per charge, and the rugged Roland build will support inspired magic and mayhem for a long, long time. SPECIFICATIONS Effect Type AUTO PITCH HARMONY VOCODER PITCH FORMANT SCATTER REVERB LOOPER Maximum Recording Time Approximately 24 seconds Display 7 segments, 4 characters (LED) Connectors SYNC (IN, OUT) jacks: Miniature phone type MIX (IN, OUT) \/ HEADSET jacks: Stereo miniature phone type (Stereo, CTIA) MIDI (IN, OUT) jacks: Stereo miniature phone type MIC IN jack: Stereo phone type USB port: USB Type-C® (Audio, MIDI) Power Supply Rechargeable lithium-ion battery Obtained via USB port (USB bus power) Current Draw 500 mA Expected battery life under continuous use Approx. 3.5 hours * These figures will vary depending on the actual conditions of use. Expected battery charging time Approx. 3 hours * To charge the unit, use the USB port of a computer or a commercially available USB power supply adaptor (5 V, 500 mA or higher). Accessories Leaflet ”Read Me First” USB Type-C to USB Type-A cable SIZE AND WEIGHT Width 188 mm 7-7\/16 inches Depth 106.5 mm 4-1\/4 inches Height 41.7 mm 1-11\/16 inches Weight (including batteries) 290 g 11 oz. . Effects and Pedals. availability http:\/\/schema.org\/OutOfStock. tags source:tom_lee_music seller_type:retailer family:effects_and_pedals availability:http_schema_org_outofstock brand:roland category:effects_and_pedals price_band:mid has:photos popularity_score:14",
    "agent_summary": "ROLAND is a better suited to experienced shoppers effects and pedals listing with marketplace-sourced data. ROLAND\u0026#x20;E-4\u0026#x20;\u0026#x7C;\u0026#x20;Voice\u0026#x20;Tweaker\u0026#x20;\u0026#x7C;\u0026#x20;Aira\u0026#x20;Compact\u0026#x20;Vocal\u0026#x20;Effector\u0026#x20;\u0026\u0026#x20;Looper currently sits around 289.99 CAD. E-4 VOICE TWEAKER A VOCALIST’S BEST FRIEND The E-4 Voice Tweaker is an outrageously jammable box of fun that harmonizes, auto-pitches, vocodes, loops, and glitches your voice and anything else you feed it. Marketplace data is richer on listing context, but it needs more buyer verification. The listing has enough baseline data to support a first-pass fit check. Structured specifications are limited, so compatibility details may need manual confirmation.",
    "intent_terms": ["ROLAND\u0026#x20;E-4\u0026#x20;\u0026#x7C;\u0026#x20;Voice\u0026#x20;Tweaker\u0026#x20;\u0026#x7C;\u0026#x20;Aira\u0026#x20;Compact\u0026#x20;Vocal\u0026#x20;Effector\u0026#x20;\u0026\u0026#x20;Looper","ROLAND","Effects and Pedals","availability:http_schema_org_outofstock","brand:roland","category:effects_and_pedals","family:effects_and_pedals","has:photos","popularity_score:14","price_band:mid","seller_type:retailer","source:tom_lee_music","availability http schema org outofstock","brand roland","category effects and pedals","family effects and pedals","has photos","popularity score 14","price band mid","seller type retailer","source tom lee music","home-recording","content-creation","live-performance","tone-shaping","Tom Lee Music","More appropriate for experienced buyers who already know the role this piece of gear needs to play.","Shoppers who already understand the role of this effects and pedals and want a more deliberate purchase."],
    "use_cases": null,
    "skill_level": null
  },
  "trust": {
    "has_verified_retail_listing": true,
    "source_count": 1,
    "source_tier_mix": ["retailer"],
    "evidence_flags": {"has_description":true,"has_images":true,"has_reviews":false,"has_specs":false,"source_count":1},
    "spec_provenance": null
  },
  "related": {
    "similar_item_ids": ["product_eb8112b391874303"],
    "comparison_reasons": ["source_count:1","family:Effects and Pedals","marketplace_only","identity_confidence:0.98"]
}
}