Plantronics Voyager 6200 UC Bluetooth Active Noise Canceling Neckband Headset - Black

First let me explain my use case: I wear my headset/headphones all day every day, I use them for business video calls, music and audiobooks. 3 days a week, I spend at least 2 hours commuting on a noisy train, then 7 hours in a noisy open plan office, with at least 4-5 hours of these on calls. So, I'm willing to spend an absolute premium for something that works, delivering:- Excellent Active Noise Cancellation- Good Call Noise Cancellation (removing background noise when on a call)- Comfort and feel secure- Long battery lifeUnfortunately, these headphones fail at all of that, and they don't feel like a premium product. Here is why:The Active Noise Cancellation - This is really bad. First the Buds supplied with headset do not sit properly or securely in the ear, so they don't create a seal (so noise leaks through). Ironically, the Bud fittings are almost exactly the same as the Bose QC30 (which I have a pair of), so I popped the QC30 buds of these, and it improved somewhat. Even when you have a seal, the way ANC is mediocre.The way ANC is implemented, feels cheap and like it was an after-thought. It's enabled and disabled via extremely an small and difficult to reach switch. There is no other controls for it, either on the their Mobile App, or the back itself.Call Noise Cancelling - Whilst its better than my QC30, its still picks up noise from wind etc.Comfort and feel secure - The Buds they provide, just do not sit securely in your ear.Battery Life - I can't comment on this, after 2 hours, I'd already decided to return these.Final Thoughts:I was buying these to deliver a balance between ANC and Call Noise Cancelling, I'd have been more than happy, if they were even 50% as effective as Bose or Sony - But they failed miserably.My advise is get yourself a Leophile Neckband which cost 1/4 the price (£40), and does both ANC and CNC far better. Or, even a pair of Bluedio which cost about the same!