Sensityvity(1KHz,0Db=1V/Pa)

　　-46±2dB-44±2dB -42±2dB

　　-40±2dB-38±2dB -36±2dB

　　-34±2dB-38±2dB -36±2dB

　　Speccifications

　　Lmpedance: Less than 2.2KΩ

　　Directivity: Omnidire ctional

　　Frequency: 20-16,000Hz

　　Standard operation voltage: 4.5V

　　Current consumption: Max 0.5mA

　　Sensitivity reduction: Within 3dB at4.5-3.0V

　　S/N ratio: More than 58dB