Monitor III A.N.C.
Marshall over-ear ANC headphones prioritising very long wireless playback, foldability and the brand’s bass/mid/treble tuning controls.

Sennheiser
Established premium Sennheiser over-ear headphones for buyers prioritising unusually long ANC battery life and broad aptX codec support.
Verified Amazon Australia variant listing. Check the selected variant before purchase.
Why consider it
Established premium Sennheiser over-ear headphones for buyers prioritising unusually long ANC battery life and broad aptX codec support.
Key specifications and decision facts
Strengths
These are documented characteristics, not a claim of hands-on performance testing.
Compromise
MOMENTUM 5 is now the newer generation. MOMENTUM 4 can still be a valid current product, but compare generation-specific battery, codec, repairability and pricing rather than treating the names as interchangeable.
If that trade-off conflicts with your priorities, compare an alternative instead of forcing a fit.
Compare against alternatives
Marshall over-ear ANC headphones prioritising very long wireless playback, foldability and the brand’s bass/mid/treble tuning controls.
Heavy premium ANC headphones differentiated by long battery life, high attenuation claims and swappable cosmetic caps/cushions.
Sony flagship over-ear ANC headphones for buyers prioritising adaptive noise cancellation, multipoint, LDAC/LC3 support and a travel-friendly wired option.
Evidence freshness
This product has deeper specification research. Australian Product Guide separates substantive review from retailer, source, image and price checks rather than collapsing them into one artificial date.
Keep researching
Move between the category guide, buying guide, focused comparison and finder without losing the decision context.
Where to buy
Product identity first; current price and stock stay explicitly separate.
Paid retailer links are labelled. Exact, verified-variant and model-search states are kept distinct. Prices, sellers, variants and availability can change after you leave APG.
Decision intelligence
Structured similarity uses maintained category, feature, brand and price context where available. It is not a review score.
Connected decision intelligence
Carry this maintained product context into APG’s other decision tools instead of starting again. Decision Lab can apply your budget, must-haves and priorities; Compare can expose the trade-offs against a close maintained alternative; Scout can explain this exact product in the context of the page you are viewing.
How APG assesses this product
APG applies the same evidence, suitability, retailer and imagery checks across its maintained product catalogue. Where APG has a useful classification but not a manufacturer-verified fact, that distinction stays visible.
What matters in this category: Noise cancellation and transparency · Battery life and travel needs · Device and ecosystem compatibility · Sound preference, comfort and wired options