Specification Brand : Eujgoov BulletPoint1 : Professional Mic Amp IC for Low Noise Output: This module uses professional microphone amplification IC, low output noise. BulletPoint2 : High Sensitivity with Fixed 20dB Gain: It has high sensitivity, fixed gain is 20dB. BulletPoint3 : Supports Two Power Supply Voltages: 3.3V and 5V. BulletPoint4 : Pins for Analog and Digital Output: It has separate pins for both analog and digital output, default output is analog BulletPoint5 : Add an Ear with Mic Amp: Add an ear to your project with this well-designed microphone amplifier. ExternallyAssignedProductIdentifier : 7902140789568 ItemName : 2Pcs Microphone Sensor High Sensitivity Microphone Amplifier Module 20dB DC 3.3V/5V Analog and Digital Output ItemPackageDimensions_Height : 4 centimeters ItemPackageDimensions_Length : 8 centimeters ItemPackageDimensions_Width : 6 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : microphone-elements Manufacturer : Eujgoov ModelName : Prevesselg2x5cfg7h1 ModelNumber : Eujgoovrg32epob1g NumberOfItems : 1 PartNumber : Eujgoovrg32epob1g ProductDescription : Specifications: Power Supply Voltage: 3.3V/5V Fixed Gain: 20dB Output: Analog signal(default) Size: Approx. 41 x 11mm/1.61 x 0.43in