Jabra GN2124NC 4-in-1 Monaural Headset Noise-Canceling Type: Headset Specifications: Noise Cancelling Ultra lightweight design Adjustable flex boom Strong design: Lab tested boom-arm construction, More than 1,000,000 units used worldwide Lightweight, ultra-soft leatherette ear cushions High-quality noise-canceling microphone PeakStop technology – max. 118 dB SPL (RMS) according to UL-60950 standards Optimized frequency response: 80 – 15,000 Hz |