. PN: 981-000575 TECHNICAL SPECIFICATIONS Microphone (Tx) Type Bi-directional ECM Frequency Response 100Hz-18KHz Sensitivity -47 dB +/- 3 dB Distortion < 2% @ 1 kHz, 94 dB SPL Operating voltage 1.4-5V DC Speakers (Rx) Frequency Response 31.5Hz-20KHz (Diffuse field) Sensitivity 94 dB ±3 dB at 1 KHz, 0.01 m, 0.01 W Distortion < 5% @ 1 kHz, 10 mW, 1 kHz Compliant to EN60950-1 PACKAGE CONTENTS Logitech H570e Headset Quick Start guide and warranty card