9Pcs Power-Function Kits Set Compatible with Major Brand Technic-Parts Motor-Set IR Receiver Adjustable Speed Remote-Control AA Battery Box Switch Light Extension Wire
This set included AA Battery Box*1(8881), medium motors*2(8883), large motor*1(88003), IR adjustable speed remote control*1(8879), IR receiver*1(8884), switch*1(8869), 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.
Build the control switch into your model to change the direction of a motor with the flip of a switch or lever.
The IR adjustable speed remote control has 4 channels. Controls motor speed with a point and click wheel. Requires 3*AAA (1.5V) batteries.
The AA battery box requires 6*AA (1.5V) batteries, batteries are not included.