Concentrations of Credit Risk, Customers, and Suppliers (Details Narrative) - USD ($)	1 Months Ended	12 Months Ended
	Aug. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Total Net Sales	$ 1,600,000	$ 41,418,304	$ 46,482,998
Republic of China [Member]
Concentration of sales risk, percentage		100.00%	100.00%
Debt description				The U.S. government imposed tariffs of up to 25% on certain goods imported from China. All of our products are manufactured and imported from China however, only our microphones are currently subject to a 7.5% tariff currently in place.
Accounts Receivable [Member]
Concentration of sales risk, percentage		10.00%
Accounts Receivable [Member] | Four Customers [Member] | North America [Member]
Concentration of sales risk, percentage		82.00%
Accounts Receivable [Member] | Two Customers [Member] | North America [Member]
Concentration of sales risk, percentage			62.00%
Sales Revenue [Member] | Macau Subsidiary [Member]
Total Net Sales		$ 4,500,000	$ 7,600,000
Sales Revenue [Member] | Three Customers [Member]
Concentration of sales risk, percentage		63.00%	66.00%
Sales Revenue [Member] | Customers [Member]
Concentration of sales risk, percentage		10.00%
Sales Revenue [Member] | Customer One [Member]
Concentration of sales risk, percentage		39.00%	13.00%
Sales Revenue [Member] | Customer Two [Member]
Concentration of sales risk, percentage		11.00%	39.00%
Sales Revenue [Member] | Customer Three [Member]
Concentration of sales risk, percentage		14.00%	13.00%