| Manufacturer | Cyber Acoustics |
| Manufacturer Part # | AC-840 |
| Cost Central Item # | 10226449 |
| Product Description | Cyber Acoustics AC 840 - Headset ( semi-open ) |
| Product Type | Headset - wired |
| Recommended Use | PC multimedia |
| Headphones Type | Headphone - monaural |
| Headphones Form Factor | Semi-open |
| Connectivity Technology | Wired |
| Sound Output Mode | Mono |
| Response Bandwidth | 20 - 20000 Hz |
| Microphone | Boom |
| Type | Boom |
| Sensitivity | -47 dBV/Pascal |
| Response Bandwidth | 100 - 16000 Hz |
| Audio Input Details | - 180° - 100 - 16000 Hz - Output Impedance 2.2 kOhm |
| Connector Type | 1 x USB ( 4 pin USB Type A ) |