Features 1.RELIABLE COMPATIBILITY: Electronic component kit for development boards, providing a stable and reliable hardware platform for users of all skill levels. 2.RICH ACCESSORIES: Electronics starter kit contains rich modules and sensors such as LEDs, buzzers and temperature and humidity sensors, allowing you to get started quickly. 3.MULTI APPLICATION: Multipurpose design, can be used in Internet of Things, robotics, electronic arts and science experiments, etc, to meet different user needs. 4.BOXED DESIGN: Packed in an integrated box, all the electronic components are packed inside the box, reducing confusion and loss, easy to carry and store. 5.STABLE AND DURABLE: These electronic components are made of premium materials and fine craftsmanship to ensure stable operation and durability for a long time.specificationItem Type: Electronic Component Kit Material: PlasticPackageList5 x White LED5 x Yellow LED5 x Blue LED5 x Green LED5 x Red LED1 x LED RGB2 x Photoresistor1 x Thermistor2 x Diode Rectifier (1N4007)2 x NPN Transistor (PN2222)1 x Tilt Switch5 x Buttons (Small)1 x 1 Digit 7 Segment Display1 x 4 Digit 7 Segment Display1 x Sound Sensor Module1 x LCD1602 Module (With Pin Header)1 x IC L293D1 x IC 74HC5951 x Buzzer Activation1 x Passive Buzzer1 xTemperature and Humidity Module1 x Potentiometer1 x Joystick Module1 x Switch Module Membrane1 x 5V Relay1 x Infrared Receiver Module1 x R3 Controller Board1 x 830 Breadboard1 x Servo Motor (SG90)1 x Stepping Motor1 x ULN2003 Stepper Motor Control Card1 x Expansion Prototype1 x Power Supply Module1 x Ultrasound Sensor1 x Servo Motor 3V (Welding Wire)1 x Fan1 x Remote1 x 65 Wire Bridge1 x Water Level Sensor1 x USB Cable1 x 9 V DC Battery Connector10 x UDS Resistor (10R)10 x UDS Resistor (100R)10 x UDS Resistor (220R)10 x UDS Resistor (330R)10 x Resistor (1 K)10 x Resistor (2 K)10 x Resistor (5K1)10 x Resistor (10 K)10 x Resistors (100 K)10 x Resistor (1M)10 x Male Female Cables1 x Resistor Identification Card1 x CD3 x Plastic Board1 x Storage Box