Commodity2005200620072008200920102011
Dictating machines not capable of op. without an ext. source of power$505,779$315,191     
Telephone answering machines$135,827$359,442$237,098$53,352$54,229$189,919$14,578
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$4,935,053$1,908,234     
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$14,892,744$19,031,672     
Total$20,469,403$21,614,539$237,098$53,352$54,229$189,919$14,578