Logitech Zone Vibe 100 Headphones With Microphone Graphite

Professional enough for the office. Casual enough for home. Headphones: Dual omni-directional MEMS mics with directional beamforming and DSP. Speakers: Frequency response (music mode): 20 ~ 20 KHz. Talk mode: 100 ~ 8 KHz. Sensitivity: 118.0?3 dB at 1mW @1 kHz . Driver size: 40 mm. Built-in battery (Lithium ion). Up to 18 hours talk time. Up to 20 hours listening time. Wireless range: Up to 30 metres (open field line of sight). USB-C charging cable: 1.5 m. Certified Carbon Neutral. 1 Year Manufacturer's Warranty.