• This set included AA Battery Box*1(8881), AAA Battery Box*1(88000), medium motors *2(8883), extra-large motor *1(8882), train motor*1 (88011), IR adjustable speed remote control (8879) *1, IR Receiver*1 (8884), light wire*1(8870) and extension wire*1(8886).
• The IR RC system operates on 4 different channels enabling you to control 4 different models at the same time. The reaching distance of the infra-red RC system is at least 30' (10M). Requires battery box.
• The AA battery box requires 6* AA (1.5V) batteries. The AAA battery box Requires 6* AAA (1.5V) batteries, not included.
• The IR speed remote control has 4 channels. Controls motor speed with a point and click wheel. Requires 3* AAA (1.5V) batteries, not included.
• Add the train motor to your train building toys to make them move.