Compared set
Only 10 of 60 models checked match every need here: “I have a long flight and a connection” and “My bag is already full”.
10 matching models from 60 checkedBest for this need
Our pick

Choose Marshall Monitor III A.N.C. if a long gap between charges is your main concern. Its claimed 70 hours with ANC on is the relevant travel figure. Choose the JBL Tour One M3 Smart Tx package if connecting a seatback screen without a cable to your head matters more.
Choose flight headphones by ANC-on battery, folding shape and the seat audio connection. Compare Marshall, JBL and Soundcore without mixing battery modes.
What the facts say
Useful conclusions from the current headphones comparison, followed by the checked facts used to reach them.
Only 10 of 60 models checked match every need here: “I have a long flight and a connection” and “My bag is already full”.
10 matching models from 60 checkedMatch countThe count uses the current product-to-need assignments for “I have a long flight and a connection” and “My bag is already full”. A need with no documented match does not count.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Marshall Monitor III A.N.C. |
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| JBL Tour One M3 Smart Tx |
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| soundcore Space One Pro |
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| JBL Tune 770NC |
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What matters in practice
Compare ANC-on runtime for the whole trip, then check the seat audio connection. Headphone battery and transmitter battery are separate limits.
Monitor III is rated at 70 hours with ANC, compared with 40 hours for Space One Pro and Tour One M3, and 44 hours for Tune 770NC. The larger ANC-off figures describe a different operating mode. These are manufacturer claims under their respective test conditions, not measured flight runtimes or a ranking of noise-cancellation strength.
Tour One M3 Smart Tx includes a transmitter for a source that does not provide Bluetooth. That can suit a seatback screen while keeping a cable off your head. Confirm the aircraft socket and any required dual-prong adapter. The transmitter needs its own power, so the headphone's 40-hour rating does not establish how long the whole transmitter setup will run.
For an illustrative trip with 18 hours of listening across flights and connections, 70 rated hours is 3.9 times that workload, while 40 is 2.2 times. That is a planning ratio, not a reserve guarantee. Folding determines how the pair fits in a bag. Weight and the pressure of the pads determine whether you want to keep wearing it, and neither can be settled by battery capacity.
Worked example
Add 12 hours on one flight, 4 hours on another and 2 hours during transfers. Compare that workload with each ANC-on claim.
FormulaBattery coverage ratio = claimed ANC-on hours ÷ 18 hours of planned listening
| Scenario | Claimed ANC-on playback | Coverage ratio |
|---|---|---|
| Marshall Monitor III A.N.C. | 70 hours | 3.9× |
| JBL Tune 770NC | 44 hours | 2.4× |
| Soundcore Space One Pro | 40 hours | 2.2× |
What that meansAll three claims exceed the example workload, but Monitor III leaves the largest rated margin. Seat audio compatibility can still make another package a better purchase.
Keep in mindA ratio above one is not a guarantee that the battery will last your trip.
4 options

Marshall, Monitor III A.N.C.
A folding over-ear pair with a 70-hour ANC-on claim and a 250 g body. It fits long trips when you would rather charge less often.
Winner whenLong travel days with ANC and fewer charging stops
It has no stated water-resistance rating.

JBL, Tour One M3 Smart Tx
An ANC headphone package with a separate Smart Tx transmitter for wired audio sources. It also accepts USB digital audio directly.
Choose instead whenYou want the included transmitter to connect an analog or USB audio source to the headphones.
The transmitter is another device to charge and carry.

soundcore, Space One Pro
A travel-focused ANC pair with a segmented headband that folds into a tighter shape. Its ANC-on battery rating matches Space One at 40 hours.
Choose instead whenYou prefer its compact folding design and the claimed 40-hour ANC runtime covers your journey.
It is 21.2 g heavier than Space One.

JBL, Tune 770NC
A 232 g folding ANC pair with multipoint and a 1.2 m analog lead. Compare its 44-hour ANC rating, not just the 70-hour headline.
Choose instead whenYou want a lighter 232 g folding pair with a claimed 44 hours of ANC playback.
It lacks the Live 770NC longer 50-hour ANC rating.
Ready to choose?
Our pick for this need

Battery claim with noise cancellation switched on
See price & reviews on AmazonChoose instead when

You want the included transmitter to connect an analog or USB audio source to the headphones.
See price & reviews on Amazon