Will Microsoft's Wedge (Bluetooth keyboard) pair with MS 640 XL?

[Windows Central Question]

I want to use a keyboard with my MS 640 XL. I have already tried to pair a no-name Bluetooth keyboard (admittedly cheaper) without success (returned the keyboard to the store). My next step would be to try the MS Wedge Bluetooth keyboard. I was hoping that a MS keyboard would pair with a MS smart phone. Any insights if this will work ? Thanks, CJSL