Logitech Zone Wireless Bluetooth NC Stereo Headset - UC

Logitech Zone Wireless Bluetooth NC Stereo Headset - UC - Zone Wireless USB Receiver - Omni-Directional Dual MEMs Microphone (Frequency Response: 85 ~ 20kHz - Speakers Frequency Response: 30~13kHz @ -10dB (Music), 100~8kHz per TIA920 (Talk Mode) - Built-In Battery (Lithium Ion) - Battery Life: Up to 16 Hours (Listening, ANC Off), Up to 15 Hours (Talk, ANC Off) - Includes Travel Bag - 981-000915 - 2 Years Limited Limited Warranty