Keyboard compatibility

Your Bluetooth keyboard will be no less compatible with the iPad Pro than it was with your iPad Air2.

More recent versions of iPad add support for newer versions of the Bluetooth standards. For example, the 2021 iPad Pro supports Bluetooth 5.0 (this being back-compatible with earlier versions of Bluetooth standards).

iPad Pro - Technical Specifications - Apple

No details here of your “wireless” keyboard, but as the keyboard has been successfully used with your iPad Air2, it is assumed that that you are using either an Apple or third-party Bluetooth keyboard.

If the Bluetooth Bluetooth keyboard worked with your Air2, it will be fully compatible with the iPad Pro.

https://www.imore.com/how-use-bluetooth-keyboard-iphone-and-ipad

If you're talking about this keyboard:--> https://www.apple.com/shop/product/MQ052LL/A/magic-keyboard-with-numeric-keypad-us-english-silver?fnode=4658d6f6cc7cb8aa026633edb6363da6d7d8158f4720c551066bd232500f5175fe0b2718d2a84e3ea148b666be8e5f89b4293efeeed13f3e3d79e3d98734f972bed6689c7648982c385ace5c7642ad944b09a531c25f5ea519abf1528a3c22adf8b5c0ebbb75f2a0a15905a667a762a2

and/or this one:--> https://www.apple.com/shop/product/MLA22LL/A/magic-keyboard-us-english?fnode=4658d6f6cc7cb8aa026633edb6363da6d7d8158f4720c551066bd232500f5175fe0b2718d2a84e3ea148b666be8e5f89b4293efeeed13f3e3d79e3d98734f972bed6689c7648982c385ace5c7642ad944b09a531c25f5ea519abf1528a3c22adf8b5c0ebbb75f2a0a15905a667a762a2

YES, they are compatible with almost all iPads supporting keyboards (see compatibility sections at the bottom of both models pages)