- Qsound Electronics Co., Limited
- tour guide system,wireless headphone,voice amplifier,Tour guide system.
- Address:UNIT 04, 7 / F, BRIGHT WAY TOWER, NO. 33 MONG KOK ROAD
- Honbo Audio (China) Limited
- wireless microphone wireless instrument microphone,In-Ear Monitoring System,UHF Wireless MIcrophone,Wireless Tour-Guide System.
- Address:9/F.,Henan Building, 19 Luard Road,, Wanchai, Hong Kong
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