使用蓝牙音乐商店，可以选择 MP3 格式的歌曲或铃音，并把它发送到任何支持 OBEX 的手机、PDA 或计算机上。

With the Bluetooth Music Store, you can select a song or ringtone in MP3 format and push it to any phone, PDA, or computer that supports OBEX.

youdao

由于铃声有多种格式，因此请参考您的手机手册，查看需要哪种格式。

Because ring tones come in many formats consult your phone's owner's manual to see which format you need.

youdao

本节关注的是这样一个格式，qr码，因为针对这个格式已经有很多开源工具可用，而且阅读器也都可以在便携的电子设备(比如手机上)实现。

This section considers one such format, the QR code, for which open source tools are readily available and readers are commonly implemented on portable electronics such as cell phones.

youdao