Answer:
The Hitune TZA-4000EM PA mixer amplifier is listed under HSN code 85423300 for B2B procurement and commercial taxation.
For institutional procurement, commercial billing, and taxation filings, the Hitune TZA-4000EM 400W PA Mixer Amplifier is catalogued under HSN code 85423300.
This classification corresponds to official billing records maintained under KT ERP reference KTI1400200140EM.
