851810 |
Microphones and stands therefor |
851821 |
Loudspeakers, whether or not mounted in their enclosures |
851822 |
Multiple loudspeakers, mounted in the same enclosure |
851829 |
Other |
851830 |
Headphones and earphones, whether or not combined with a microphone, and sets consisting of a microphone and one or more loudspeakers |
851840 |
Audio-frequency electric amplifiers |
851850 |
Electric sound amplifier sets |
851890 |
Parts |