JBL Synchros S300
With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.
Folding devices are good for transporting as they take up less space in your bag.
Allows you to change ear pads without buying new ones.
The device comes with its own special case or pouch, which is useful for safe transportation.
An L-shaped plug is better if the jack is on the left or right side of the device, so that the cable isn't bent, and is less likely to break when the device is in your pocket.
The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.
The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.
The device sits tightly in place, creating an acoustic seal which reduces background noise and prevents your music from leaking out.
Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
AKG K553 Pro
The driver unit is the component that produces sound in the device. Bigger drivers are more powerful and can produce better bass.
Audeze LCD2 Classic
A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.
There is a control panel on the cable, so you can easily operate the device without having to interact with it.
More microphones result in better sound quality and enable the device to filter out background noise.
Parrot Zik Sport