Marshall Monitor III A.N.C. review

The Monitor III A.N.C. is built for people who never want to think about charging. Marshall rates it at 70 hours with active noise cancellation and 100 hours without, and a 15-minute quick charge adds 12 hours of playtime. Active noise cancelling measures background noise continuously, and Transparency mode lets you hear the world when needed. Marshall's sound tuning uses Dynamic Loudness to adjust treble, mids and bass at every volume, plus Soundstage spatial audio and adaptive loudness. The design folds, weighs 250 g, and uses a multidirectional control knob and a customizable M-button for EQ, Spotify or a voice assistant. Bluetooth 5.3 supports multipoint and is LE Audio-ready, though codecs are limited to SBC and AAC, and there is no water resistance. Marshall's US store did not show a price from our location, so we marked it pending; check it before you buy.

Who it is for

People who want the longest battery life on this list and a rugged, foldable design.

Price

See vendor pricing (USD check pending).

US price check pending. See the vendor pricing page.

Key features

• 70 hours with active noise cancellation, 100 hours without
• 15-minute quick charge for 12 hours of playtime
• Soundstage spatial audio and Dynamic Loudness
• Bluetooth 5.3, LE Audio-ready, with multipoint
• Rugged, foldable design with a customizable M-button and control knob

Strengths and weaknesses

• Strength: Longest battery rating on the list by a wide margin
• Strength: Folds down and ships with a carrying case
• Strength: USB-C to 3.5 mm cord included for wired use
• Weakness: Codecs limited to SBC and AAC
• Weakness: No water resistance
• Weakness: US price did not show on Marshall's store from our location

Key facts

• Battery: 70 hours with ANC, 100 hours without
• Quick charge: 15 minutes for 12 hours
• Weight: 250 g (8.8 oz)
• Codecs: SBC, AAC
• Bluetooth: 5.3, multipoint, LE Audio-ready

Where it ranks

Marshall Monitor III A.N.C. is No. 8 in our Best Wireless Headphones verdict.