Trantec S2.4 Series Entry-level wireless system S2.4HBX Dual Channel Receiver With Beltpack And Handheld Transmitters 5000 Series Wireless system for fixed installations D5000 Series Digital wireless system with high speech clarity IR-700 Series Infrared Wireless Microphone System WG-D100 Tour Guide System IR-800 Series Infrared Wireless Classroom System S2.4 4-page brochure