如果Android手机是唯一的A2DP源设备，那么蓝牙耳机如何将声音发送到Android手机？

Question

如果android手机是唯一的A2DP源设备，那么蓝牙耳机如何将声音发送到android设备？

Answer 1

I'm not sure where you got the idea that Android devices only support A2DP. Most, if not all(?) Android devices with Bluetooth support the Hands-free Profile, where voice audio is transferred between the device and the accessory over a SCO link.

If your question actually was "I've got an Android device that only supports A2DP, can I use it for voice calls over Bluetooth?" then I don't know. I suspect not, since A2DP is unidirectional.