Newer iPad Pro or Air models with USB-C ports will work for both voice and audio with the Arctis 7+.
Most Modern USB-C Phones do work, but some older Samsung Galaxy phones (Galaxy Note10 or earlier) only support audio and not voice functionality via USB-C due to Samsung firmware not being updated. You can still listen to games, music, and videos, but will not be able to use the headset mic for calls or voice chat.