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General Description
Based on the closed-back, dynamic HD 280 PRO headphones, the HMD 280 PRO headset has been especially designed for communications in high-noise environments (High SPL). Its dynamic, super-cardioid microphone has been optimised for close talking distances.
Features
	saving design with collapsible, rotating ear-pieces
	sided coiled cable
	compensated, super-cardioid microphone with extremely low handling noise, can be worn on either left or right-hand side
Delivery Includes
	1 Hör-/Sprechgarnitur HMD 280 PRO
	1 Wind- und Poppschutz

Technical Data
	Transducer principle (Headphones)		Dynamic
	Impedance		64 Ohm
	Load rating		500 mW
	Ear coupling		circumaural
	Frequency response (headphones)		8.....25000 Hz
	Sound pressure level (SPL)		102 dB(IEC 268-7))
	THD, total harmonic distortion		0,1 %
	Transducer principle (Microphone)		Dynamic
	Pick-up pattern		Supercardioid
	Nominal impedance		200 Ohm
	Sensitivity as per 121 TR 9-5		0,7 mV/Pa
	Frequency response (microphone)		50.....13500 Hz
	Weight w/o cable		310 g
	Contact pressure		6 N
	Connection cable		coiled cable, 1m/3m