44Pcs Power-Function Kits Set M/L/XL Servo-Train-Motor-Set Compatible with Major Brand Technic-Parts Pieces IR Receiver Adjustable Speed Remote-Control AA/AAA Battery Box Light Switch

This set included 2* AA Battery Boxes (8881), 2* AAA Battery Boxes(88000), 1* IR adjustable speed remote control (8879), 1* IR remote control (8885), 2* IR receivers (8884), 2* medium motors (8883), 2* large motors (88003), 2* extra-large motors (8882), 2* servo motors (88004), 2* train motors (88011), 2* switches (8869), 2* extension wires(8886), 2* light wires (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.