Type: MS (Mid-Side) Stereo System;
Frequency Response: 30~18000Hz;
Sensitivity:-40dB;
Directional characteristics: a single point x 2;
Output Impedance: 200 Ohms;
SNR: 76dB;
Power supply: DC 3V;
Maximum SPL: 120db;
Power requirements: DC 1.5V(AA) alkaline batteries;
The original line length: 28cm;
The maximum line length stretch: 79cm