Specifications https://www.raytac.com/product/ins.php?index_id=81 Module Demo Board built by MDBT50Q-1MV2 * Nordic nRF52840 SoC Solution Version: 2 * A recommended 3rd-party module by Nordic Semiconductor. * BT5.2 & BT5.1 & BT5 Bluetooth Specification Certified * Supports BT5 Long Range Feature * Certifications: FCC, IC, CE, Telec (MIC), KC, SRRC, NCC, RCM, WPC * 32-bit ARM® Cortex™ M4F CPU * 1M..