Description:There is a circuit board and the microphone is fixed on the PCB board. It can effectively reduce noise and pick up the sound from 360 degrees.You can put it in your pocket or backpack owing to its compact size. It is very convenient to take for any occasions anywhere or anytime.Made of ABS material, it is durable and reliable to use.The length of the product is 5.9cm, the width is 4.3cm, the height is 1.9cm.It is suitable for online meeting, business conference, video chat, etc. Screw fixing makes our product very stable in operation.Item Name: Omnidirectional MicrophoneMaterial: ABSDirectivity: OmnidirectionalFrequency Response Range: 20~20K(Hz)Sensitivity: -463dBWorking Voltage: 1.5V5 PercentOutput Impedance: Maximum Sound Pressure Ratio: 110dBSignal-to-noise Ratio: >75dB;Pickup Distance: within a Radius of 5mConnection Mode: 3.5mm AUXCable Length: about 1.5mSystem Support: for Win XP/7/8/10, for Mac OS, for iOS, for AndroidFeatures: Stable, Reliable, OmnidirectionalSize Details: 5.9cm x 4.3cm x 1.9cm/2.32" x 1.69" x 0.75" (Approx.)Notes:Due to the light and the screen setting difference, the item's color may slightly differs from the pictures.Please allow slight dimension difference due to the manual measurement.Package Includes:1 x Omnidirectional Microphone (Other Items Not Included)1 x User Manual