EvoDX Harmony Active Noise Cancelling[Up To 25hrs] Bluetooth Headphones, Over Ear, High-Fi Stereo with Music Sharing - Includes Case

I bought these headphones to use at work, where my 'office' is one plasterboard wall away from a destructive testing facility with numerous loud machines (mainly large hydraulic pumps+fans) often operating all day. I wasn't sure what to expect of them, but I am very impressed, especially given the price.The noise cancelling does a great job at quietening the low frequencies (which my office walls do little to deaden), taking things from being distractingly loud to allowing me to listen to classical music even at lowish volume. The NC also works well to silence the sounds of helicopters from the nearby RAF base, who seem to use my factory for hovering practice.The cans fit over my fairly large ears, and are comfortable for 12-hour+ use, even though I wear glasses.Sound quality via Bluetooth from my laptop is pretty good once the Bluetooth handsfree service is disabled, (allowing the device to appear as a stereo headset rather than the default handsfree set with low audio quality), though it *is* strange how much poorer the sound is with noise-cancelling off.Note that when the manual says they can't be used while charging, it is wrong. NC works as usual, and Bluetooth simply needs turning back on again after plugging in a charging lead.To the reviewer who said NC doesn't work on theirs, either they're expecting it to cancel high frequencies, which NC doesn't really do much for, or their headphones are defective.

Good quality noise cancelling and comfortable headphones if, like me, you have to wear it for extended periods. Very good value for the price, compared to other more expensive models that don't offer the same number of features.

Decent enough sound but noise cancelling on these cans is just raising the volume. Pretty much non existent.When connected via Bluetooth on the TV, they are out of sync.I have purchased several Bluetooth headphones from 7dayshop previously and all of them were around the £20 mark, and just as good, if not better, than these.Slightly disappointed in all honesty.