Just had to refund for an ir reciever . I parted out the two 2014 train sets , which lists the recievers as v2 , I did not check which ones I got, it turns out that they are v1.5 , the brickowl inventory is wrong for these parts , so check which ones you have . For those not in the power functions know the v2 can carry alot more power than the v1.5