Description Technical Specifications Microphone Type: Unidirectional Sensitivity (headphone): 32 Ohms Sensitivity (headphone): 100 dB /-3 dB Sensitivity (microphone): -58 dBV/µBar, -38 dBV/Pa /- 4 dB Frequency response (Headset): 20 Hz – 20 kHz Frequency response (Microphone): 100 Hz – 16 KHz System Requirements Windows®, macOS, or ChromeOS™ and popular calling platforms. Certified Works With Chromebook™. Single 3.5 mm jack