So you are looking for a Bluetooth mechanical keyboard with a more compact profile? The Cooler Master SK621 keyboard has you covered. It comes with Cherry MX low profile switches and brushed aluminum design. It supports up to 3 devices via Bluetooth but you can also use this as a wired keyboard.
You can make adjustments to lighting and macros with no additional software. There is also a software available for customizing lighting modes and macros.[where to get it]