Hangzhou JiGao Electroacoustical Science and Technology Co.,Ltd

Experiences in the development and production of electro-acoustic devices tester on the basis of Zhejiang University. Several technologies have a leading position at home, and production categories are more than ten series, covering the sensitivity of electro-acoustic devices, frequency response, distortion, polarity, microphone current, directional microphone positive and negative points sensitivity difference, pure tone hearing review, the sound pressure correction, impedance, F0, dual headphone sensitivity difference (balance), telephone integrated electro-acoustic properties, and so on.