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- Description：Hion QD-B8 External ring off hook, USB front line.Docking telephone system interface of Hion,Call ring, pick up or hang up.
Characteristics：
- Active noise reduction technology, effectively shielding environmental noise
- Inline Volume control to adjust volume and mute control to quickly mute conversation
- The call ring can be selected from the docking system
- Sound quality USB wire for rough usages
- Meet 24 hours all-weather continuous use
HION QD-B8 Headphone adapter
VOIP telephone