Commodity2005200620072010
Dictating machines not capable of op. without an ext. source of power $15,200  
Telephone answering machines$263$383$278$2,513
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$23,540   
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$889,156$1,683,618  
Total$912,959$1,699,201$278$2,513