KORE AVIATION KA-1 Premium Gel Ear Seal PNR Pilot Aviation Headset with MP3 Support and Carrying Case Mono & Stereo Support with Built-in Y-block Switch on Cable Premium Noise Reduction Rating (NRR) of 24db for Hearing Protection Extra Comfortable Gel Ear Seals with Flexible Boom Mic Dual Volume Control on Each Ear Cup with 3.5mm Plug for MP3/iPhone/iPad/Android FREE Carrying Case Included!