Commodity2005200620072008
Dictating machines not capable of op. without an ext. source of power $416$178$148
Telephone answering machines$275$1,823 $2,915
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$573$157$2,725$2,148
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$31,010$5,534$20,750$13,590
Total$31,858$7,930$23,653$18,801