Datavideo HP-1E Headset

One-ear headset Closed-type earphone to eliminate sounds from Ear pads Soft and comfortable for long-term use Noise-canceling microphone Connector: x1 1/8" Audio/Microphone jack Headphone Specifications: Conversion principle: Dynamic Operating principle: Closed Frequency range: 10Hz-22kHz Nominal resistance: 24 ohms Nominal sound pressure level at 1kHz: 98dB T.H.D.: <0.2% (at 1 kHz 100 MW) Rated power: 100 MW Microphone Specifications Conversion principle: Capacitor Frequency Range: 20-16kHz Radiation pattern: Omnidirectional Nominal resistance: 2.2 cOm Sensitivity: -64dB