Marshall Bass Blast Monitor III A.N.C Bluetooth Wireless Headphones - New & Sealed

Built on Marshall’s legendary rock heritage, the Monitor III delivers professional-grade audio with contemporary wireless features. It merges rugged, stage‑inspired design with cutting-edge comfort and modern convenience—perfect for studio sessions, travel, or everyday listening.

             marathon battery life, and rugged flair, the Monitor III ANC checks all boxes. It shines in extended use situations

Audio & Sound Quality

• Marshall sound signature: Balanced yet vibrant tuning with punchy bass, clear mids, and crisp highs—excellent for rock, pop, classical, and podcasts  .
• Soundstage mode: Optional spatial audio (“SoundStage”) enhances sense of space, though some reviewers prefer leaving it off  .

Active Noise Cancellation & Transparency

• Effective ANC: Efficiently reduces ambient noise (approx. 20 dB reduction), ideal for flights and commuting  .
• Transparency mode: Lets in environmental sound, but may feel less clear than competitors  .

Battery Life & Charging

• Record-breaking endurance: Offers up to 70 hours playback with ANC on, and up to 100 hours with ANC off—among the longest in the market  .
• Fast charging: Just 15 minutes gives about 12 hours of playback  .

 Design & Comfort

• Lightweight & foldable: Compact, portable form factor with a sturdy carry case lined in red velvet  .
• Dual‑layer foam pads: Long‑wear comfort with balanced clamp force, vegan‑friendly materials  .
• Sturdy, repair‑ready build: Durable aluminum headband, serviceable parts, and sleek hinges  

Controls & Connectivity

• Bluetooth 5.3: Supports SBC and AAC, lacking LDAC/aptX  .
• Physical control knob: Tactile control for playback, volume, and calls.
• M‑button & ANC toggle: Customizable via Marshall app—assign EQ presets, voice assistant, or Spotify Tap  .
• Wired option via USB‑C: Use included USB‑C to 3.5 mm cable; no traditional aux 
• Wear detection: Pause/post‑play automatically.