What format does iphone6 ringtone support?

IPhone6 custom ringtone format must be .m4r.

You can use the PP assistant computer to transfer the ringtone from the computer to the iPhone, because it is impossible to directly transfer the ringtone to the mobile phone on the computer. The method is as follows:

1 You need to install the pc PP assistant first, then connect the iPhone to the computer, wait for the PC PP assistant to connect to the mobile phone, and click Trust this PC on the mobile phone.

2 After the connection is successful, find "Video Music" and ringtone-import on the left side of the page, and select ringtone files in m4r, mp3 and acc formats.

3 After the import is completed, you can go back to iPhone, set-sound, and select the ringtone you just imported as the ringtone of incoming call or SMS.