Logitech H820e USB Connector Single Ear Wireless Headset Wireless Type: others Part: 981-000511 Headphone Frequency Response: 150Hz-7KHz Headphone Sensitivity: 103dB +/-3 dB at 1KHz Weight: 3.1 oz. (Headset) 16.8 oz. (Base) Microphone Frequency Response: 100Hz-7KHz Microphone Sensitivity: -45 dB +/- 3 dB Package Contents: Headset Charging stand AC power adapter USB cable Quick Start Guide and warranty card
