Tech and audio: headphones, power banks and what to check

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In brief

There is no dedicated Déclic buying guide in this category yet. Until there is, the Déclic assistant gives you three options as targeted Amazon.co.uk searches, starting from how you use the device (travel, commuting, the office) rather than from a ranking of models. No price is shown, and the checks that matter are listed below.

Which device interests you?

• Headphones or earbuds: ask the Déclic assistant. Check compatibility, weight and the returns policy.
• A computer, a monitor or a smartphone: ask the assistant too. For a computer, check the memory, the ports, the operating system and the exact weight. For a phone, check the network, the storage and how long software updates will last.
• Powering your devices on the move: compare power banks by capacity in Wh rather than mAh. For a larger supply, see best portable power station → in the Home and energy category.

Frequently asked questions

Which power bank can you take on a plane?

Airlines set limits on lithium batteries, usually expressed in Wh. Check with your airline before you fly.

Does noise cancelling damage your hearing?

It can let you listen at a lower volume, which is kinder to your ears.

mAh or Wh, what should you look at?

Wh, to compare batteries and to travel: it is the figure that lets you compare like with like.