Package content: 2pcs Motherboard Beep Speaker Buzzer | Material: Plastic, Metal | Length: approx. 6cm/ 2.36inch | Suitable for motherboard Connector Type: 2.54 pitch 4 Pin female header, plugs right into your motherboard where the speaker hooks up. | Function: These speakers are used to obtain beep codes from motherboards, alarm systems and other electronics. Keep your computer case internal cable tidy.