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Prolonged use of earphones cause hearing damage. This headset will sound an alarm after each hour of continuous use, so that the user have to stop using and have a break. A thin wire connect the left and right parts. It brings to the user a different experience and makes ear more comfortable. The initial position of the knob is the line below. When it starts work, the knob will begin to rotate upward automatically. One hour later, the earphone will emit a sound which is similar to a mosquito call, so that the user cannot use the earphone normally. Then turn the knob to the bottom position, the sound will is disappear.
Tianjin University of Science and Technology
TianJin, China
Zhenyu Zhang,
Tianjin University of Science and Technology