- Riedel
http://www.riedel.net
German manufacturer and rental supplier of 2-way radio, party-line intercom, matrix intercom, digital audio, and digital audio network equipment.
- RG Sound & Communications
http://www.rgsound.com/
Sound reinforcement, lighting systems, portable stages/roofs, paging systems and two-way radio for concerts, conventions, sports events, motor sport events, fairs, festivals and business meetings.
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