The PTR5518PA ultra-low power Bluetooth Low Energy/2.4GHz Proprietary Multi-protocol modules based on the nRF51822 from Nordic Semiconductor.The module with an ARM® Cortex™ M0 32 bit processor, embedded 2.4GHz transceiver, and integrated antenna, provide a complete solution with no additionaI RF design, allowing faster time to market, while simplifying designs, reducing BOM costs, also reduce the burden of Regulatory approvals to enter the world market. Making you more quickly into the bluetooth smart application and remove the worries.