The Qualcomm CSR8510 is a compact Bluetooth chip widely used in USB dongles, audio gear, and wearable tech. Supporting Bluetooth 4.0 with Low Energy (BLE), it enables energy-efficient wireless communication with smartphones, speakers, keyboards, and more. It offers dual-mode Bluetooth, up to 9.75 dBm output power, -91 dBm receiver sensitivity, and supports Class 1–3 devices. Featuring a USB 2.0 interface, QFN package, and 6×6 mm size, it's compatible with Windows, macOS, and Linux through dedicated firmware and drivers.