- Mobile telephone equipment (48)
- Telephone equipment (75)
- Communication equipment (487)
- Amateur radio communications equipment (17)
- Electronic tubes: receiving and transmitting, or industrial (5)
- Facsimile equipment (9)
- Intercommunication equipment, electronic (115)
- Modems, computer (21)
- Paging and signaling equipment (14)
- Public address equipment (13)
- Sound equipment, electronic (167)
- Capacitors, electronic (1)
- Cassettes, recording (6)
- Coils, electronic (2)
- Condensers, electronic (1)
- Connectors, electronic (11)
- Rectifiers, electronic (1)
- Resistors, electronic (1)
- Semiconductor devices (24)
- Transformers, electronic (6)
- Transistors (1)
- Citizens band radios (1)
- Closed circuit TV (1)
- Radio parts and accessories, nec (13)
- Radio receiving and transmitting tubes (1)
- Television receiving and transmitting tubes (5)
- Transmitters (6)
- TV parts and accessories, nec (1)
- Video equipment, electronic (95)
- Diskettes, computer (5)
- Magnetic recording tape (9)
- Security control equipment and systems (685)
- Tapes, audio and video recording (59)
- Radar detectors (2)
