OVERVIEW Williams Sound heavy-duty, dual-muff headset with boom microphone for DLT 400. The robust design of this headset with soft-touch earpads, makes it extremely comfortable to wear for longer periods. Ideal for noisy environments or where acoustic isolation is desired for listening, like a noisy production plant. 39" heavy duty cord, unidirectional condenser (electret) noise-cancelling microphone for close-talking. This headset has a Noise Reduction Rating (NRR) of 20dB. Warranty 90 days