Midland is an American Radio Company. That looks like a CB or possibly a VHF radio. Not really sure. We dont get those in the US in Kubota machines. Maybe it is law in your country to have a radio included so that you can talk to other people or your dealer must have added that as some bonus. I notice in your excavator video you also got a radio installed also for two way comms. Nice machine. Hope you are enjoying after the last few months.