- Dikon Intercom Co.,Ltd
- electronic product, security entry system, video & audio doorphone.
- Address:canafin plaza, no. 20 canafin road, tsimshatsui, kowloon
- Betterking Co.Ltd
- USB Internet TV&Radio,Vedio Door Phone,Wireless Digital Video Door Phone,Audio Doorphone,Wireless Digital Audio Doorphone,Wireless Digital Survillance System,Wireless DoorChime,Wireless alram System.
- Address:Room 2703,Building B, Xin Zhou Building,Fu Tian Area
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