3 ms·
The study I read about apnea said people were given simple plastic didgeridoos. Authentic ones are $100-$2000, and a plastic one with beeswax was $35 on Amazon.
by wincy 6y ago
The study I read about apnea said people were given simple plastic didgeridoos. Authentic ones are $100-$2000, and a plastic one with beeswax was $35 on Amazon.