For those who value quality sound and freedom without cables, the Intenso O400HA white, Bluetooth 5.3, ANC, 75 hours of operation, foldable headphones are a great choice for everyday use at home, on the go or in the office. With their exceptional autonomy, advanced active noise cancellation and modern wireless technology, these headphones will change the way you listen to music and take calls.

Evaluation of key product features

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These wireless headphones are designed for anyone who wants to enjoy music without the constraints of cables, as well as those who need effective noise cancellation while working or traveling. The over-ear design makes them extremely comfortable even when worn for long periods of time, and their foldable construction makes them easy to take with you on the go or store in your bag.

Thanks to modern Bluetooth 5.3 connectivity, they provide a stable, fast and energy-efficient connection to all modern smart devices. Active noise cancellation (ANC) allows you to fully immerse yourself in your music, whether you're in a crowd, on public transport or in a busy office. The superb battery life – up to 75 hours of operation – means that the risk of leaving these headphones in the lurch in the middle of the day is minimal.

They feature a minimalist white finish that exudes a clean, modern look. The foldable design and ease of use ensure a great user experience, as you can easily adapt the headphones to your lifestyle. Although there is no support for voice assistants and water resistance, all other key features impress with quality, comfort and durability. Intenso designs headphones for consumers who seek reliability, freedom of movement and premium sound at any time of the day.

Same summary

The Intenso O400HA headphones are designed for users who value over-ear comfort, extended listening time and wireless freedom – whether at home, in the office or on the go. Thanks to their active noise cancellation (ANC), they are suitable for reducing ambient noise, for example on public transport or in an open office, while the long battery life allows for multi-day use without worrying about charging. The foldable design makes it easy to store while carrying, which will be especially useful for those who travel frequently or switch between different environments. Although not the best choice for sports and exercise due to their larger size, they offer exceptional comfort and good passive isolation for music enthusiasts and users who need quality for work and relaxation.

Recommendation source: Enaa guides and team experiences.

User view

These wireless over-ear headphones are often chosen by individuals who spend a lot of time in school, a home office, an open workspace or on the go – anyone who wants an experience where sound is at the forefront and environmental distractions are effectively blocked. They are especially suitable for streaming music, watching movies and long phone calls, as they fit quietly and comfortably, and the ANC function adds a sense of privacy even in noisier situations. With their foldable earcups, the transition from the living room to the bus or train is a breeze. If you are interested in the differences between headphone types, also read our headphone selection guide , where you will find more practical advice.

Backed by the renowned reliability of the Intenso brand, users often choose it for its ease of use and continuous development in the wireless audio segment.

Why buy at Enaa

At Enaa, you can count on a clear presentation of technical details and filters that make it easy to compare similar models. In addition, we always allow you to search for products from leading brands in our offer, which gives users more options for making the right choice.

Answers to frequently asked questions

Are the Intenso O400HA headphones suitable for use with a smartphone and a computer?

Yes, thanks to the wireless Bluetooth 5.3 connection, you can easily connect them to your smartphone, laptop or tablet. They connect quickly and are stable even when switching between devices.

How effectively does active noise cancellation (ANC) reduce distracting ambient noise?

Active noise cancellation is designed to reduce steady ambient sounds, such as traffic or office noise. ANC will be less effective with loud, sudden sounds or people talking, which is typical of most models.

Are the headphones too big to carry in a bag or backpack?

Their foldable design takes up less space, so they can easily fit into most bags or backpacks, making them convenient for everyday carrying.

Are they also suitable for sports activities?

Since it's an over-ear model that's a bit larger and doesn't have any special sweat protection, these headphones aren't the best for intense workouts or sports. They'll be better suited for casual listening, work, or travel.

Who is ANC suitable for and when is it better to choose a different type of headphones?

ANC is recommended for those who often listen to music or make calls in noisy environments, such as on a bus, train, or open office. If you need lighter, sportier headphones for exercise or often need to hear what's going on around you, it's worth looking at other types - see our headphone guide for more information.

Description updated: May 2026