The 30pcs 6050 cylindrical electret microphone is designed for pcb appliions. Each microphone pickup measures 6mm x 5mm in size and comes with pins for easy installation on integrated devices such as audio recorders communiion systems. The electret condenser mic inserts offer reliable performance and sensitivity for clear audio recording. Features: Comes with a 2 pins for easy connectivity to your device. Electret condenser microphone back electret type small in size in general use. Widely applied to phone mobile phone mp3 mp4 laptop digital camera intercom monitor etc. Specifiions: Product Name: Electret Microphone Model: 6050 Color: Silver Tone Material: Metal Sensitivity: 36-38dB Net Weight: 12g/0.4oz Frequency Response: 40Hz-13KHZ Size(Not Included Pin): 6 x 5mm/0.24 x 0.2 (L*D) Package Content: 30 x Electret Microphone Notes: 1.Please check the specifiions and make sure that the size of the electret microphone fits that of your component. 2.Colors in the een may not accurately reflect the true color due to individual computer monitors differences. 3.Due to the different measure ways or tools there may exist slight deviation (ranged at 1-3cm) you don t mind.