Sony WI-SP600N review: specs and price

Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.

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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Resistance to sweat makes it ideal for use while doing sports.

Allows you to change ear pads without buying new ones.

The in-ear device is ultracompact and lightweight, with little or no interference with earrings, spectacles, hats, or hairstyles. It is inserted in the ear canal itself and blocks out a lot of environmental noise. It has stronger bass tones and is unlikely to fall out of the ear.

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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This type of device allows you to listen at lower volume levels, causing less ear fatigue as you don't have to crank up the volume to overcome background noise. Ideal for plane rides and morning commutes.

Devices with neodymium magnets are lighter and more powerful than those which use ferrite magnets. They also have more bass and clear high notes.

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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An indicator shows you when the device has low 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.

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Device supports fast Bluetooth pairing using NFC so it can communicate with other devices over Bluetooth. You can fastly pair devices without entering a code by simply holding one device next to the device with which it is to be paired.

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.