This headset is always a top seller because of its comfort and affordability. Customers tell us they like the wire articulated boom with fingertip adjustable screws that lets them easily position the mic. They also like the ventilated headband that helps them keep a cool head. Weight (passive): 16.9 oz.; Mic: Noise canceling electrets mic — muff included; Combined liquid and foam ear seals, cloth ear seal covers included; Noise Reduction: 24 dB. The ventilated, low-profile headband lets air in and heat out for cool comfort. For additional comfort, add one of our polar fleece headpads. Please allow 1 week for delivery.