ITEM NAME:2X Mini Plug Speaker For PC Computer Motherboard Buzzer Beep Alarm JR.Use: Power on the computer, we will hear the familiar sound of "beep" a sound, generally indicating that the computer can be used normally, the sound is emitted from the "baby.". Red is positive, black line is negative (in fact, regardless of the positive and negative, as long as the interface connected to the Speaker can be used).
