The Nano 33 BLE Sense is an improvement over the traditional Nano with a more powerful processor, the nRF52840, a 32-bit ARM - CPu running at 64 MHz. This will allow you to make programs that are much larger than for (it has 1MB of program memory, 32 times more than the) and have more variables (128 times more RAM). The main processor includes other amazing features such as Bluetooth pairing via NFC and ultra-low power mode. Colour:Black Material:PC+metal Package Contents: 1 x 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.