Klein Electronics COMET Single Muff Comet High Noise Headset; Built tough for high-noise conditions such as Athletics, Warehouse, Events & Construction; Impact Rated Earshells Key Features: - Built tough for high-noise conditions such as Athletics, Warehouse, Events & Construction - Impact rated earshells - Universal 5-pin cable connector port - Swivel Boom for Left or Right side use - Soft hygienic cover for earpad included - Use with K-Cord Specifications: Microphone: - Dynamc Frequency: FO - 1.6Hz - Dynamic Impedance: 150x(1) Ohms (1000Hz) - Dynamic Sensitivity: >0.5m V/Pa (200Hz - 4000Hz) - Dynamic SNR: >12dB - Electret Frequency: 200Hz - 4000Hz - Electret Impedance: 680 Ohms - Electret Sensitivity: (-51dB) +/- 3dB - Electret SNR: >55dB - Sensitivity Reduction: less than 3dB - Voltage Range: 1-10v - Currency Consumption: less than 0.5mA Speakers: - Size: 40mm dynamic - Impedance: 16 Ohms at 1kHz - Rated power: 50mW - 80mW - Frequency Scope: FO - 4.8kHz - FOAM EAR SEALS - Diameter inside: 2-3/8" x 1-5/8" - Diameter outside: 3-7/8" x 3" - Thickness: 1/2" - Includes cotton cover: Yes Earshells: - Material: ABS