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) Board alarm tone Description AWARD BIOS ringing of the universal meaning is: 1 short: the system starts properly, which we hear every day, but also that machines without any problems. 2 short: universal error, please enter the CMOS Setup, reset the incorrect . 1 long 1 short: RAM or motherboard error, try for a memory, if that does not work, had to replace the motherboard. 1 long 2 short: Monitor or display card error. 1 long 3 short: Keyboard controller error, check the motherboard. 1 long 9 short: board Flash RAM or EPROM error, BIOS damage. For the block Flash RAM try. Continuous sound (long beeps): memory is not seated or damaged. Re-insert the memory, if that does not work, replace only a memory. It ringing: power supply, display and graphics card connected. Check all plugs. Repeat short ring: Power problems. No sound No display: power problems. colour: as shown Material: Plastic + electronic components Package Contents: 10 x Mini Plug Speaker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.