Bang & Olufsen Beoplay H4 review: specs and price

Comfortable full-size form with earcups that fully enclose your ears. This model is loved for its increased sound isolation and the fact that it won't leak sound to your neighbors. It offers potential for maximum bass and loudness levels.

With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.

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A long cable ensures more freedom of movement.

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The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.

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The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.

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The driver unit is the component that produces sound in the device. Bigger drivers are more powerful and can produce better bass.

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The device's battery life (when in use) as given by the manufacturer. With a longer battery life you have to charge the device less often.

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The battery can be recharged and used over again.

The time it takes to fully charge the battery.

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Wireless devices allow users more freedom of movement.

The device can connect at a greater distance via Bluetooth or infrared to another device.

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A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.

A headset is one headphone or pair with a built-in microphone. Headsets can be used for applications which require communication i.e. Skype, games with voice chat, mobile phones etc.

More microphones result in better sound quality and enable the device to filter out background noise.

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There is a control panel on the cable, so you can easily operate the device without having to interact with it.