Stereo In-ear Powerful Bass Earphones With Microphone (Black)

OHM - A measure of resistance named after George Simon Ohm

Black - A colour which does not emit any colour of the spectrum. Black absorbs all frequencies of the spectrum.

Cm - Centimetres, one centimetre is equal to 10 milimetres

Microphone - A device for recording sounds. Also known as a mic.

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