XL52832-DO 1 sampling NORDIC Bluetooth 4.2 chip NRF52832 design and manufacture, the module comes with an on-board antenna and support external IPEX antenna interface, the chip so 10 have lead out.The of NRF52832 has added many new features. For example, the -M4F core, which has more computing power and floating- technology.This SoC has 512KB of Flash and 64KB of RAM, which also exceeds other manufacturers' by a margin, the extra Flash and RAM space also means that the NRF52832 can support multiple protocols, the NRF52832 supports BluetoothSmart (L owEnergy), ANT/ANT+ and NRF52832 supports BluetoothSmart (L owEnergy), ANT/ANT+ and proprietary 2.4GHz multiple protocols, so you can connect nRF5 1, NRF24APand NRF24L and other .Colour:blueMaterial:PCBSize:25 x 22MMPackage Contents:1 x Bluetooth ModuleOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.