The all-female-founded company, backed by Oura Health co-founders and Business Finland, uses brainwave entrainment to support focus, sleep, and recovery via background audio. Its new Sleep Headband targets secure environments where phones are banned. Audicin, the Finnish neurotechnology company using brainwave entrainment and auditory engineering to support nervous system regulation, has raised $1.9 million in […]This story continues at The Next Web