Received repackaged (53 euros), missing the aircraft adapter. But that's not the worst. The most serious is that the noise reduction was active and inactive it off mode (inverted I do not know why). Moreover, even in off mode (so active under the inversemment on / off) I could hear the cars passing by my girlfriend and talk to me. While I tested the upscale Xi-fi thing thing thing to 350 euros (off-budget) and I almost could not hear anything.
In short, I took a passive reduction (better than one): HN-600 JVC 31 euros.
Thank you again to Amazon.com and its seriousness: Support the return and refund of the purchase in 3/4 days! This leads me to consider continuing purchases of refurbished products!