More and more Bluetooth Classic (Basic rate or Enhanced data rate) devices entering the market now include Bluetooth Low Energy (BLE) functionality resulting in dual-mode Bluetooth solutions. The trend is expected to continue as single-mode Bluetooth Low Energy sensors become more wide spread making Bluetooth Classic devices solely effective for audio, file transfer and PC compatibility applications. Due to economies of scale and market demand, new Bluetooth Classic-only silicon chipsets are becoming less common. The focus of silicon suppliers is now on new BLE 5.0 features such as higher effective data rate, longer range performance and on future implementations of a public Serial-Port Profile and higher quality audio performance. For this reason, it is becoming less common to find Bluetooth Classic-only modules as BLE begins to replace the functionality of the older protocol.