The keyboard is detachable (SP7 can be used in Tablet mode without the keyboard) and all keys function including back lighting. MS Surface detachable (UK, QWERTY) keyboard. MS Surface Pro 7. The battery is still good for a few hours of light usage but don’t expect it to be as good as new, or in the duration of modern MacBook Pro’s, etc. (It is 5yrs old after all.).
eBay