This is a set including the micro:bit V2, sensors, and cables. Purchased about 3 or 4 years ago. I am no longer using it, so I am selling it. It originally cost around 10,000 yen in total. Includes: micro:bit V2 main unit, I/O board (Grove shield for micro:bit v2.0), ultrasonic sensor, cables, USB cable, battery case, instruction manual. Some parts may be missing. Please purchase only if you understand this. Thank you.