| eClass-7.1-ID |
19081003 |
| eClass-ID |
19020502 |
Plantronics Voyager 4220 UC. Connectivity technology: Wireless, Bluetooth. Wearing style: Head-band, Headset type: Binaural. Ear coupling: Circumaural, Headphone frequency: 20 - 20000 Hz, Headphone sensitivity: 94 dB, Impedance: 32 , Driver unit: 3.2 cm. Volume control: Digital. Weight: 150 g. Product colour: Black