The IoT trend has made the demand for devices connecting to the Internet more and more significant; according to the latest market survey report by the Bluetooth SIG, it is estimated that the application of data transfer through Bluetooth alone will reach an annual shipment of 1.46 billion in 2025 with a compound annual growth rate of 11%. The development of Bluetooth Low Energy (BLE) has also been gradually flourishing in recent years, and in addition to wireless audio transmissions, pure data transfers are also trendy applications.