1、COMPLETE AND USEFUL: This pack contains over various components to help you with fun and easy electrical experiments. 2、VARIOUS ACCESSORIES: Including LED, resistors of different resistance, button, female to male cable, 830 hole breadboard and so on. 3、HUMANIZED DESIGN: Stable in structure and great in performance, this electronics kit enables simple operation and flexible DIY. 4、WIDE COMPATIBLE: Compatible with for R3 component pack starter kit is also compatible with for development and so on, meeting your needs. 5、RELIABLE PCB: Adopt excellent PCB materials, with reliability and miniaturization, good maintenance and interchangeability. Item Type: Electronics Kit Product Material: Silicone Use: Multi color signal light used to distinguish different hardware functions. Note: The voltage of the power module should not exceed 9V. 1 x Power Module 1 x 830 Hole Bread Board 1 x Jumper Wire Kit(65Pcs) 1 x Solderless Jumper Wire Kit(140pcs) 1 x 20 Pin Female to Male Jump Wire 2 x Pin Head (40 Pins) 1 x Accuracy Potentiometer 2 x Photoresist 1 x Thermistor 5 x Diode Rectifier (1n4007) 5 x NPN Transistor (Pn2222) 1 x IC 4n35 1 x IC 74hc595 1 x Active Buzzer 1 x Passive Buzzer 10 x Small Switch 10 x 22pf Ceramic Capacitor 10 x 104pf Ceramic Capacitor 5 x Electrolytic Capacitor 10uF 25V 5 x Electrolytic Capacitor 47uF 16V 10 x White LED 10 x Yellow LED 10 x Blue LED 10 x Green LED 10 x Red LED 1 x RGB LED 10 x 10R Resistance 10 x 100R Resistance 10 x 220R Resistance 10 x 330R Resistance 10 x 1K Resistance 10 x 2K Resistance 10 x 5K1 Resistance 10 x 10K Resistance 10 x 100K Resistance 10 x 1M Resistance 2 x Storage Box