Logitech Business H820e Dual Headset
| Type: Bi-directional ECM |
| Frequency Response : 100Hz-7KHz |
| Sensitivity: : -45 dB +/- 3 dB |
| Distortion: <10% @ 1kHz, 10dBPa (MRP) input |
| Operating Voltage: 1.4-5V DC |
| Talk Time: Up to 10h |
| Charging: 3 hours connected to charging stand provides full charge |