| CONTENTS | Founded in 1986, Hull is devoted to developing and producing computer accessories , including manual switch, auto switch, CPU switch, printer buffer, and so on. From 1991, we began to develop and manufacture telecommunication products, including alphanumeric and character pager, plug-in saver charger, twin charge and handsfree car kit for cellular phones. We currently specialize in the development and manufacture of multi-SIM card system, featuring selective system capability without conducting power on/off. With our manual switch, you can easily and conveniently select the system you want to use. Contact us today! |
