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Specs perspective

Impedance （Ω）

It refers to the electrical resistance. The higher the value, the lower the volume. When used with portable audio, it can be said that low impedance is easier to handle.

Sensitivity (dB)

It is a value indicating how much sound pressure level a 1kHz sound can be obtained when applying 1mW of power. In general, the higher the value, the higher the volume, and the lower the value, the lower the volume.

Playback frequency characteristics (Hz)

It is a value that indicates how many Hz to what frequency the headphones can play.

Maximum Input Power (mW)

This is a numerical value that indicates the maximum value that can be input without the sound breaking up or getting distorted.

Cable

Shapes include straight cords, curled cords and flat cables. The length is generally about 1.2m to 1.5m.

Plug

Although stereo mini plugs are the mainstream, high-end headphones and professional headphones have products with stereo standard plugs. There are two types of shapes: L-shaped plug whose plug is bent at 90 degrees and straight type plug.