Commodity200520062008
Microphones & stands therefor$27$112$454
Headphones & earphones, whether or not combined with a microphone, & sets c ...$215 $1,743
Audio-frequency elec. amplifiers$126$2,217$3,051
Electric sound amplifier sets$106$151$2,649
Parts of the app. & equip. of 85.18  $24
Total$474$2,480$7,921