30pcs in 1 Iduino Mega 2560 Experiment box starter kits--Prototyping Shield,Mini breadboard, Remote control,Infrared transmitter & receiver,Temperature & Humidity Sensor ect. This is a kit for starters. There is a Mega2560 R3 Borad assembled by our company, sensors and mudules ect. All of them are simple and useful for you. Easy to use. High cost-effective