 The wheelsets are built to run at over speeds on both the Finnish and the nominally slightly narrower Russian gauge, and the doors are equipped with a retractable step to make boarding from both Finnish high and Russian high platforms easy.The units are equipped for both the Finnish and Russian railway technical systems, which differ substantially.The trains are owned by Karelian Trains, a 50–50 joint venture between VR Group (Finnish Railways) and Russian Railways (RZD).