David Clark, Ground Support Headset H3312 p/n 12515G-12

The industry standard communication headset used for ramp, maintenance and ground operations. p/n 12515G-12 Noise shielded microphone with momentary push-to-talk switch, hangs freely for periodic use M-1/DC noise-cancelling amplified dynamic microphone Soft foam head pad with ribbed design and foam ear seals for exceptional durability and comfort 25-foot straight cord with PJ-051 plug eliminates need for extension cords Corrosion-proof, chrome plated, headband/stirrup assembly Certified Noise Reduction Rating (NRR): 26db   323 This headset qualifies for FREE DOMESTIC SHIPPING with tracking number.