Marshall Unveils Monitor III A.N.C. Headphones: 70 Hours of Battery Life and High-Tech Features

By DaMarko Giancarlo

Marshall has just expanded its personal audio lineup with the introduction of the Monitor III A.N.C. wireless headphones. Highlighted by an impressive 70-hour battery life, these headphones are accompanied by a high-profile campaign featuring Green Day’s Billie Joe Armstrong.

Building on more than 60 years of audio expertise, Marshall’s latest flagship product offers active noise-cancelling (ANC) technology, a common feature in today’s premium headphones. What sets the Monitor III A.N.C. apart, however, is its exceptional battery performance. Marshall claims 70 hours of playback with ANC activated, and over 100 hours with ANC turned off – a clear differentiator in the crowded market. This far exceeds competitors like Cambridge Audio’s P100 and Dyson’s OnTrac, which offer 60 and 50 hours of battery life respectively.

The Monitor III A.N.C. also features an enhanced transparency mode, allowing users to filter ambient sound for situational awareness. Additionally, Marshall’s proprietary Adaptive Loudness technology ensures balanced audio across low, mid, and high frequencies at any volume. The headphones house 32mm drivers that deliver a 20 Hz – 20 kHz frequency response. For those who prefer wired listening, the headphones offer 35-ohm impedance, making them compatible with smartphones and other low-power devices without requiring an external amplifier.

A new feature, called ‘Soundstage,’ introduces spatial audio for a more immersive listening experience, positioning the Monitor III A.N.C. at the forefront of the evolving audio landscape.

Weighing just 250 grams (8.8 oz) and featuring a foldable design, these headphones are travel-friendly. Marshall has also incorporated physical controls, including a multi-directional joystick for volume and track control, alongside a customizable “M” button. The device charges via USB-C and reaches a full charge in two and a half hours.

Priced at £299 GBP / $349 USD / €349 EUR, the Monitor III A.N.C. headphones are now available through Marshall’s website, ready to challenge the top tier of the wireless audio market.