Sound Principals

Sound Principals is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Radiotelephone Communication
• Electronic Parts & Equipment

North American Industry Classification System (NAICS) Categories:

• Other Electronic Parts And Equipment Merchant Wholesalers
• Wireless Telecommunications Carriers (Except Satellite) > Radiotelephone Communications

Standard Industry Classification (SIC) Categories:

• Radiotelephone Communications
• Electronic Parts & Equipment