David Clark active noise reduction headset. Model H10-13X. It is an older model but does a great job cancelling noise. The battery power supply is hardwired and has a connection for a power supply. As you can see in the picture I added a cover on the power switch to prevent battery drain when in my flight bag. There is a switch for choosing stereo/mono. I have the head pad but it should be replace. Included are a spare set of ear seals. Look and see the latest version of this headset is not cheap. Feel free to contact me with any questions.
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