100% brand new and high quality Material: Plastic and Metal Color:See pictures 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 AWARD BIOS ringing of the general meaning is: 1 short: the system starts properly, which we hear every day, but also that machines without any problems. 2 short: General error, please enter the CMOS Setup, reset the incorrect options. 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 kept ringing: power supply, display and graphics card connected. Check all plugs. Repeat short ring: Power problems. No sound No display: power problems. Size: See the picture Quantity: 1Pc No retail package Note: Due to the difference between different monitors, the picture may not reflect the actual colorof the item. Thank you