It's not only for model train buff, but also for children which has intellectual curiosity.
The model is "Superconducting Maglev" by Japan Railway Company which is under examine from 1997. That the real achieved 603 km/h (374.7 mph) on Apr 22, 2015.
The commercial service Chuo Shinkansen planned to start 2027 between Tokyo - Nagoya, 2045 Nagoya - Osaka.
The toy runs 500 km/h (310.7 mph) at the scale speed (how fast it drives in relation to the full size) Approx. 1/90 size of "Superconducting Maglev".
Floats up 2 mm (0.08inch) from the rail. Thus, no friction between the wheel and rail.
If this is the first time to buy from Rakuten Global refer http://domoarigatojapan.weebly.com/blog/how-to-use-rakuten-global-service But maybe not needed because it's easy to do.