Stereo sound systems have two or more separate audio signal channels where the signals have specific levels
Stereophonic - Of or used in a sound-reproduction system that uses two or more separate channels to give a more natural distribution of sound.
Stereo audio uses twice the bandwidth of mono audio because of the two separate channels, with much of the information duplicated on both channels
MPEG audio can use conservative methods to maintain audio quality but reduce bandwidth by retaining o

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Package Dimensions
Width : 2.5 inch
Height : 1.9 inch
Length : 6.1 inch

Item Weight: 2.88 ounce (View shipping rates and policies)
Shipping Weight: 1.6 ounce (View shipping rates and policies)

ASIN : B000U673KY