Item Type: Project Super Starter Kit Material: PCB + metal Supporting Battery: 1604D 6E22 9V dry battery 500mAh (supporting) Remote Control Battery: CR2025 2.0V 170mAh (built in) Resistance: 10Ω 100Ω 220Ω 330Ω 1KΩ 2kΩ 5.1KΩ 10KΩ 100kΩ 1MΩ 1、WITH FREE PDF TUTORIALS: Equipped with free PDF tutorials(over 22 lessons) and clear checklists in one beautiful package 2、FOR INTERESTED BEGINNERS TO START PROGRAMMING: This is the most practical platform based kit, suitable for interested beginners to start programming 3、LCD1602 MODULE WITH PIN HEADER: Come with Lcd1602 module with pin header, no need to solder by yourself, easy for you to start and use 4、WITH POWER SUPPLY: This is an upgraded starter kit with a power supply module and a 9V battery with DC power, more convenient 5、COMPATIBLE WITH FOR R3: This programming project super starter kit is fully compatible with for R3, contain a variety of accessories 1 x Potentiometer 1 x Relay 1 x Tutorial CD 1 x Thermistor 1 x USB Cable 1 x 1 Bit Digital Tube 1 x Remote Control(with CR2025 battery) 2 x 74HC595 Chip 2 x PN222 2 x Diode 2 x Buzzer 2 x Photoresistor 1 x 4 Bit Digital Tube 5 x Button Switch 1 x 9V Battery 1 x 10PIN Jump Wire 1 x 64PIN Jump Wire 1 x DHT-11 Temperature Humidity Sensor Module 1 x LCD1602 Module 1 x RGB Light 1 x For R3 Module 1 x Stepper Motor 1 x Stepper Module 1 x Joystick Module 1 x Ultrasonic Ranging Module 1 x Battery Connection Cable 1 x Capacitor 1 x Power Module 1 x Servo Kit(1 servo + 3 screws + 3 fan blades) 1 x Infrared Receiver Module 1 x Nut(possibly on potentiometer) 1 x Gasket(possibly on potentiometer) 1 x Motor 1 x Breadboard 1 x Breadboard Expansion Board(with 1 small breadboard) 1 x Fan Blade 25 x LED(5 colors, 5pcs/each) 100 x Resistance(10 kinds, 10pcs/each) 1 x Storage Box