Headset for Call CentreOmnidirectional microphone with clear calls and smoother voice40mm dynamic driver unit with soft closed ear cushions Rorarable and flexible microphone Easy access, wired control for volumeHP standard one-year limited WarrantyFrequency Response: 20Hz- 20KHSpeaker Size: 40mm Speaker Sensitivity: 112dB + 3 dBRated Power: 15mWMicrophone Type: omnidirectional Microphone Size: 6 x 5 MMMicrophone Sensitivity: -58dB + 3dB SNR: >60dBConnectors: 3.5 mm jack Cable Length: 1.9mWeight: 119 + 10gProduct Size: 165 x 155 x 60 mm