LOGITECH HEADSET USB HEADSET H340 BLACK AP (981-000477)

Description Key Features & Specifications From Logitech’s official site and support pages: Connection / Interface: USB‑A plug & play (digital audio power over USB) Microphone: Noise‑canceling (bi‑directional) boom mic Frequency Response: • Headset: 20 Hz – 20 kHz  • Microphone: 100 Hz – 16 kHz Sensitivity / Impedance: • Headphone sensitivity: ~ 115 dB ±3 dB  • Microphone sensitivity: –42 dBV/Pa ± 3 dB  • Impedance: ~ 22 Ω (for mic input / internal spec) Cable Length: 1.8 m (6 ft) Dimensions / Weight: • Approx. 160 mm height × 175 mm width × 60 mm depth  • Weight ~100 ~ 120 g (without cable) Other Features: • Adjustable headband  • Swivel / fold boom mic (can tuck inside headband when not in use)  • No on/off switch (powered via USB)  • Works across platforms (Windows, macOS, Chrome OS) without needing drivers beyond USB audio support