How long is your work day?

How loud is the noise?

Are you going to be listening to something, like a customer?

If it's noisy outside, then the customer is going to hear that?

Noise cancellation can be great, but it may not be necessary or comfortable all day. A set of earbuds can be uncomfortable and not provide as effective noise cancellation. Over the ear headphones provide non-electrical noise blocking. Open back headphones allows for less ear pressure at the cost of letting noise out. Bluetooth is not as clear as wired, more costly and uses batteries that need charging half way through your day and replaced in 3 years. The quality of built in mics aren't as good as a stand alone one and if one item breaks, the other becomes useless. You're not going to want to use the headset for recreational if it has a built-in mic.

I'd buy a open back, over the ear headphones from Seinheiser and a good attachable mic or free standing.