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A headset combines a headphone with a microphone. Headsets are made with either a(n) single-earpiece or a(n) double-earpiece (mono to both ears or stereo). Headsets provide the equivalent functionality of a telephone handset but with handsfree operation.
Android 4.0 (API level 14) introduces support for the Bluetooth Health Device Profile (HDP). This lets you create applications that use Bluetooth to communicate with health devices that support Bluetooth, such as heart-rate monitors, blood meters, thermometers, and scales. Headset. 2  The Headset profile provides support for Bluetooth headsets to be used with mobile phones. 3  Android provides the BluetoothHeadset class, which is a proxy for controlling the Bluetooth Headset Service via interprocess communication (IPC). 4  This includes both Bluetooth Headset and Hands-Free (v1.5) profiles.