Bluetooth specification: 2.0 (for Internet connection and file transfer via phone).

Bluetooth规格：2.0(针对Internet连接和通过电话传输文件)。

youdao

Bluetooth specification: 2.0 (for Internet connection and file transfer via phone).

Bluetooth规格：2.0(针对Internet连接和通过电话传输文件)。

youdao