This kit contains all the components you need to build your own robots, including :
1x Hummingbird Duo Controller
1x 5V,2A Power Cable
1x USB Cable
1x Terminal Tool
4x Standoffs
1x Light Sensor
1x Temperature Sensor
4x Single Color LEDs
2x Tri-Color LEDs
2x Servos
1x Servo Extension Cable
Not recommended for children under 12.