Boya BY-M1 Lavailer Microphone - Black
• Transducer: Electret Condenser.
• Frequency Range: 65Hz-18KHz.
• Signal/Noise: 74dB SPL.
• Sensitivity: -30dB +/-3dB / 0dB=1V/Pa, 1kHz.
• Output Impedance: 1000 Ohm or less.
• Connector: 3.5mm (1/8") 4-pole gold plug.
• Battery Type: LR44.