You will receive the Holiday Train set as well as all four power functions.  Authentic Lego Power Functions #'s: 8879, 88002, 88000, & 8884. 

All are new and unopened.  Train and most parts sold out or backordered.  I will ship USPS Priority Mail same/next day as payment is received.  I've also added a one-day shipping option via the USPS for an additional charge.  You can choose which shipping option you'd like at checkout.  Thanks for looking!