| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |
| Model | SF-666 |
| Sensitivity | -55dB±2dB |
| Directivity | Noise Cancelling |
| Impedance | <=2.2K Ω |
| Sensitivity | reduction: Within -3dB at 1.5v |
| Operation Voltage | 1.5V |
| Frequency Response | 50Hz -16KHz |
| S/N ratio | More than 36dB |
| Cord Length | approx. 2m |
| Color | Golden, Black, White |
| Size | 13.5 x 4.5 x 3.8cm |
| Cable length | approx. 1.6m |








