The Feasycom FSC-BT671 use a Bluetooth low-power chip includes a 40 MHz ARM Cortex-M4 microcontroller which delivers a maximum power output of 19 dBm. The chip's maximum receive sensitivity is -93 (1 Mops 2 GFSK) dBm, supporting a complete DSP instruction set and floating point unit for faster calculations. Low-power Gecko technology, support fast wake-up time and energy-saving modes. The BT671 software and SDK support for Bluetooth Low Energy (LE), Bluetooth 5 and Bluetooth mesh networks. The module also support for proprietary wireless protocol development. FSC-BT671 combines an energy-friendly MCU with a highly integrated radio transceiver. The module is suited for any battery operated application other systems requiring high performance and low energy consumption.