Remarkable matters：

Directivity：Omni-directional

Dimensions[mm]：φ6.0 x 2.2

Sensitivity：-44dB±3dB at 1 kHz （0dB=1V/Pa）

Signal to Noise ratio[dB]：More than 58dB.

Operating voltage：2~10V

Frequency：20~16,000Hz

Features

Consists of a high voltage internal electret membrane, metal electrode and a Field Effect Transistor (FET). Doesn’t need a high-voltage bias from the outside like ordinary condenser microphones. Features: Highly efficient electricalspecification, pressure type operating principle, low impedance (2.2kΩ), omnidirectional back directivity, and a high degree of reliability under adverse shock, vibration and environmental tests. Applications: Telephone and telephone answeringdevices, tape recorders, intercoms, computer modems, completed microphones for recording, testing and monitoring, hearing aids, sonic controlled toys and sensors, and others. All buzzers and microphones are non-washable.