We are HONGKONG KOONTECH TECHNOLOGY LTD ，located in the beautiful seashore city--Shenzhen ，China. We are  professional manufacturer which focus on manufacturing telecommunication terminal products include moistureproof phone, dustproof telephone, loud-speaking waterproof telephone, bank telephone, tunnel emergency telephone, elevator telephone, prison telephone ,some telephone parts, etc. Applicable for Subway, railway,highway call box, tunnel, power plant, petrochemicals  factory, mining, dockside, iron & steel factory. All the products are CE/FCC/IP66 approval. We  keep over 10 years friendly cooperation relationship with our customers such as SIEMENS,ALCATEL,TTIC,Schlumberger,HARRISL&ETC.