Summary of Significant Accounting Policies - Schedule of Disaggregation of Revenue (Details) - USD ($)	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Total Net Sales	$ 45,802,574	$ 38,500,570
Karaoke Machines [Member]
Total Net Sales	34,700,000	32,600,000
Licensed Product [Member]
Total Net Sales	4,700,000	2,000,000
Microphones and Accessories [Member]
Total Net Sales	4,700,000	2,600,000
SMC Kids Toys [Member]
Total Net Sales	1,300,000	900,000
Music Subscriptions [Member]
Total Net Sales	$ 400,000	$ 400,000