Microphone condenser 4*1.5 mm

From the shop's description

Electric microphone is a sound- electrical conversion device. It is used in telephones, wireless telephones, mobile phones, ear-telephones, recorders, radio recorders, alarms, voice control toys, voice control switches and more Specifications: Size: 4 x 1.5 mm Directive: unidirectional Connection: solder type Sensitivity: -28 to -58dB Standard operating voltage: 3V Impedance: 2.2K Ω