The Logitech Dual Wireless Headset H820e combines enterprisequality wireless audio with superior design elements, making it Logitech’s best wireless headset. Interruptions are minimized with a distinct in-call LED light, and muting is intuitive thanks to the on-boom mute button and LED mute indicator light. Product Description Logitech Dual Wireless Headset H820e Device Type Wireless Headset Headphones Type Headphones - binaural Microphone: (Tx) Type: Bi-directional ECM Frequency response: 100 Hz - 10 KHZ Sensitivity: -45 dB +/- 3 dB Distortion: ‹10% @ 1kHz, 15dBPa (MRP) input Operating voltage: 1.4 - 5.0V DC Speakers (Rx) Frequency response: 50 Hz - 10 kHz( Diffuse field ) Sensitivity: 90dB ±3 dB at 1KHz, Input0.56V/10mm free field Max output: ‹ 100 dB SPL (Compliant to EN60950-1) Distortion: ‹ 4% @ 1kHz, 0dBm0, 1kHz Weight 128 grams Dimensions (WxDxH) 174 mm x 50 mm x 165 mm System Requirements Windows Vista, Windows 7 or Windows 8 (32-bit or 64-bit) Mac OS 10.7 or higher Linux Available USB port
