| Impedance | Max. 650Ω±5% (at 1KHz) | |
| Directivity | Uni-directional ( Single-directional ) | |
| Standard power supply | 1.5V DC | |
| Current Consumption | Max. 0.5mA | |
| Sensitivity | -50Db +-4dB (0dB=1V/Pa at 1KHz) | |
| Frequency | 70Hz-16KHz | |
| Length | 2M | |
| Insulator | bridge polyethylene | |
| sheath | PVC | |
| withstand voltage | AC500V per min | |