The basic package includes: BBC Micro-Bit V2 Nordic nRF52833 processor Extended edge connector with 5 alligator clip pins USB or battery powered Built-in speaker and microphone 25 built-in LED lights, 2 built-in buttons Built-in motion sensor Built-in light sensor Built-in temperature sensor Built-in compass Built-in radio and bluetooth wireless. Micro-USB USB cable Connect the Microbit to your computer to program and power the board. 9 inches Battery holder with switch Power your Microbit anytime, anywhere size: 17.50 x 15.90 x 3.71 cm Material: PCB colour: As shown Package Contents: 2 x MicroBit V2.2 Development Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.