:link_to_translation:`zh_CN:[中文]`
The Bluetooth service is dedicated to interface with Bluetooth devices and provides support for the following protocols:
- HFP (Hands-Free Profile): remotely controlling the mobile phone by the Hands-Free device and the voice connections between them
- A2DP (Advanced Audio Distribution Profile): implementing streaming of multimedia audio using a Bluetooth connection
- AVRCP (Audio Video Remote Control Profile): used together with A2DP for remote control of devices such as headphones, car audio systems, or speakers
Implementation of this API is demonstrated in the following example: