From healing frequencies, sound bath, vibration, bilateral music, meditative and nature based music.
It’s all over the map …. and it all looks SUPER kooky and the quality is hit or miss and suspect both in design and actual sound.
Opportunity I see here is to come in with professional technicians and designers and offer a quality brand and resource for these types of more Eastern sound resources.
This stuff is only going to get more popular, especially with next generation.