| Features | |
| Low noise design Suitable for all kinds of 3.5 plug speakers Convenient and easy to set High-fidelity recording system Specially designed for QQ, MSN, Skype and Internet chat user | |
| General Specs | |
| Model | SF-920 |
| Operating Voltage | 1.5 V |
| Frequency Response | 50 Hz-16 KHz |
| SNR | > 36dB |
| Cable Length | 2.5 m |
| Sensitivity | -55dB ± 2dB |
| Directivity | Omnidirectional (Noise canceling) |
| Impedance | ≤ 2.2 KΩ |
| Sensitivity Reduction | Within- 3dB at 1V |
| Compatibility | 3.5 plug speakers |