Microphone: Single-sided noise reduction microphone. Professional microphone noise cancelling technology: Can block 99% background noise. Microphone impedance: 2.2K / Ω. Microphone sensitivity: -38dB ± 3dB.
H600‑2.5 Telephone Headset 2.5mm Single Ear Customer Service Headphone With
A26-RJ Call Center Customer Service Headset Telephone Headphone Noise Canceling
・H600‑2.5 Telephone Headset 2.5mm Single Ear Customer Service Headphone With
H600‑2.5 Telephone Headset 2.5mm Single Ear Customer Service Headphone With New
H600‑2.5 Telephone Headset 2.5mm Single Ear Customer Service Headphone With Nois
｀H600‑2.5 Telephone Headset 2.5mm Single Ear Customer Service Headphone With New
