The Mixcder E8 offers Bluetooth 4 connectivity using the SBC codec, active noise cancellation and a $70 price tag.  It doesn't offer support for other codecs, nor does it provide more than stereo playback, which does seem reasonable for the price point.  It does use standard 40mm neodymium drivers and offers 32 Ω impedance, with a battery which will offer 16 hours or more of playback.

TechPowerUp tested them and found them to be about what you should expect from a wireless ANS headset at this price, with one small caveat.  The headphones offer a wired mode for extended use, however doing so disables the microphone.

"The Mixcder E8 is a pair of wireless, over-ear headphones with active noise cancelling, and a price that's much lower than you'd expect after going over the list of features. Just about everyone is after a pair of wireless headphones nowadays; here's something worth considering if you're on a tight budget."

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