Distinguish an amplifier, speaker, microphone, earphone and multifunction audio device. Input power, internal power sources and wireless or network interfaces affect the technical scope.
- Product family: Audio equipment.
- Schemes to assess: BIS CRS registration, E-waste EPR registration.
- BIS category reference: Electronic Musical Systems with input power 200W and above.
- Application scope: confirm the actual model, factory, brand and the responsible business for each scheme.

