Model Number: HF-1402WH
Key Specifications/Special Features:
Mic type: 6*5mmImpedance: maximum 2.2KΩSensitivity: -58 ±2dB (0dB=1V/PA)Directivity: omnidirectionalS/n ratio: more than 60dBSensitivity reduction: within -3dB at 1.5VMic frequency: 30...
Model Number: TM-3666MV
Brand Name: Hisonic
Key Specifications/Special Features:
Audio-in operating Internet phone talk IP telephoneMicrophone type: 9 x 7mmImpedance: maximum of 2.2K OhmsSensitivity: -58 ±2dB (0dB 1W/pa)S/N ratio: more than 60dB...