Quick answer: The Heavys H1H is rated for up to 50 hours of battery with HellBlocker noise cancelling off and 40 hours with it on, according to the Heavys FAQ. It folds, comes with a protective travel case, and still plays through the included cable with the headphones switched off. Heavys describes its noise cancelling as mild active noise cancelling combined with passive noise cancellation.
Specifications checked on heavys.com on 6 November 2026.
What matters most in headphones for a long flight?
A long flight asks four things of a pair of headphones, and they pull in different directions.
- Battery that outlasts the trip. A long-haul flight plus the airport time on both ends can take most of a day. A rating well above that leaves room for delays and the trip home.
- A plan for when the battery runs out. A pair that still plays over a cable with the power off keeps the music going.
- Noise control for the whole flight. Engine noise lasts from take-off to landing, so check how a pair handles it: active noise cancelling, passive isolation from the ear-cup seal, or both.
- Comfort past the third hour. Weight, clamp and ear-cushion material matter more on a twelve-hour flight than in a short listening test.
How long is the Heavys H1H battery rated for?
The Heavys H1H is rated for up to 50 hours of battery without ANC and 40 hours with HellBlocker on, according to the Heavys FAQ. The H1H product page lists the battery lifetime as up to 50 hours. These are Heavys' published ratings, so the figure that applies depends on whether HellBlocker is on. The H1H charges over USB-C, and its light shows red while charging and blinks red when the battery is low.
Can the Heavys H1H play with a dead battery?
Yes. The Heavys FAQ describes a Passive Analog Mode: with the analog cable connected and the headphones switched off, the analog signal goes directly to the speakers. In that mode there is no noise cancellation and no button control. Every H1H box includes a 2.5 mm to 3.5 mm AUX cable and a USB-C cable for charging and listening, so the cable for that mode comes in the box. The Heavys FAQ says the analog cable is included in every bundle.
How much noise does the Heavys H1H block?
Heavys describes the H1H's noise cancelling as "High efficiency PNC combined with a mild ANC for lowest levels of perceived disturbance". PNC is passive noise cancellation, the seal of the ear cups. HellBlocker is the name Heavys gives its active noise cancelling. The H1H spec sheet lists its modes as Wired Pure Passive, BT Passive, BT ANC and BT Transparent. The Heavys FAQ says Bluetooth Transparent mode "lets you better hear your surroundings without removing your headphones".
If the strongest possible noise cancelling is the one thing you want from a flight headphone, weigh Heavys' own word "mild" when you choose. The H1H is built around sound first: four speakers per ear cup, two low / mid range speakers and two high frequency tweeters.
Is the Heavys H1H comfortable for a long day of wear?
The Heavys H1H weighs 410 g (14.5 oz), which is a full-size over-ear headphone. Heavys lists replaceable ear pads "With Pressure-Distributing Foam For Long Listening Sessions" and non-leather ear cushions. The ear cups are 28 mm deep at the rear side, which Heavys says should be enough for most ears. Heavys offers replacement kits for the ear pads and head pads.
Does the Heavys H1H fold and come with a travel case?
Yes. Heavys lists the H1H as "Durable & Foldable" and travel ready, and the box includes a premium protective travel case. Heavys also sells an extra H1H travel case on its own.
Is the Heavys H1H good for commuting?
For a commute, the H1H's strengths are the same as on a plane: a long battery rating, a Transparent mode, and a case to carry it in. Over Bluetooth 5.1 it supports SBC, AAC and aptX adaptive. At 410 g it is a full-size headphone, so if you would rather carry less on a short commute, the Heavys H1E earbuds are the smaller option: Heavys rates them for up to 7 hours on the earbuds and 24 hours with the charging case.
Can you change the sound for travel?
Yes. The Heavys mobile app has a 5-band EQ, and Heavys says EQ settings are saved directly within the headphones, so a setting made at home stays on the flight.
Frequently asked questions
How many hours does the Heavys H1H battery last?
The Heavys H1H is rated for up to 50 hours of battery without ANC and 40 hours with HellBlocker on, according to the Heavys FAQ. These are Heavys' published ratings; the figure that applies depends on whether HellBlocker noise cancelling is on.
Can the Heavys H1H play wired with the power off?
Every Heavys H1H works wired and wireless, and the box includes a 2.5 mm to 3.5 mm AUX cable. In Passive Analog Mode, with the cable connected and the headphones switched off, the signal goes directly to the speakers, without noise cancellation or button control.
Does the Heavys H1H have noise cancelling?
Yes. Heavys describes the H1H's noise cancelling, called HellBlocker, as high efficiency passive noise cancellation combined with a mild ANC. The H1H also has a Transparent mode, which Heavys says lets you better hear your surroundings without removing your headphones.
How heavy is the Heavys H1H?
The Heavys H1H weighs 410 g (14.5 oz). It has replaceable ear pads with pressure-distributing foam and non-leather ear cushions, and it folds into the included protective travel case.
Should I travel with Heavys earbuds or Heavys headphones?
It depends on the trip. The Heavys H1H over-ear headphones are rated for up to 50 hours of battery without ANC and can play over a cable with the power off. The Heavys H1E earbuds are smaller and rated for up to 7 hours on the earbuds and 24 hours with the charging case.
The Heavys H1H is sold at heavys.com; see today's price on the product page.
Updated 6 November 2026. Specifications from heavys.com. Prices change with Heavys' sales, so this guide does not quote them; the product page always shows the current price.