• This set included AA Battery Box *1 (8881), AAA Battery Box *1 (88000), IR adjustable speed remote control *1 (8879), IR receiver *1 (8884), medium motor *1 (8883), large motor *1 (88003), extra-large motor *1 (8882), servo motor *1 (88004), train motor *1 (88011), switch *1 (8869), extension wire *1 (8886), light wire *1 (8870) and a kit of technic parts(random colors).
• The servo motor can rotate 90 degrees clockwise or counterclockwise. Add 4-wheel steering functionality to your models. Requires battery box.
• 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 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. The AAA battery box Requires 6* AAA (1.5V) batteries. Batteries not included.