The Keikyu 2100 series began commercial operation on March 28, 1998 as the successor to the 2000 series, which mainly operates on the Keikyu Main Line and Kurihama Line. We are active mainly in the operation of express and wing (commuter liner).Equipped with equipment made by Siemens that makes the control sound at the time of departure sound like a musical scale (currently, it has been replaced with normal specifications due to an update), and is popular among railway fans as a “Do-Re-Mi-Fa Inverter” and a “Singing Car”.Equipped with a slotless motor in the basic set motor car. 22-202-7 Combined with the sound card , you can enjoy driving with rich tones.- Employment of a slotless motor realizes even smoother and quieter running.- Compatible with interior lighting kit Kato 11-211 (11-212)