External sound headphones
Abstract:
The external sound headphones are a set of headphones with two earphones. Each of the earphones is formed with a port. The port is opened and closed with a hinged cover. When the hinged cover is opened, the port allows external sounds to pass freely through the earphone while the external sound headphones are in use. The port allows the wearer to monitor their environment while listening to the external sound headphones. The external sound headphones comprise a headband, a plurality of sliders, a plurality of earphones and a cable.
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