A:AnswerThis one came with a dongle. I don't think this will work with a phone. I have a Samsung 10 and just looked at pairable devices and the keyboard does not come up as one.
A:AnswerHere is the link to the Logitech Unifying Receiver that will take care of what you need https://www.logitech.com/en-us/product/unifying-receiver-usb?crid=7
A:AnswerThere is not a light to indicate when the cap lock is on, but it does display on my screen. When I purchased, there was only one color option, so I can’t help you there