Established in 1999, Huanyutong Technology Co., Ltd is specialized in research, manufacture and marketing of security and communication products, We have more than 200 products on sale both in domestic China and overseas. Our target is to "offer good quality products with competitive price." Specifically, the main product lines include: 1) Wireless calling system used for restaurant, tea house, KTV, hotels, casino and hospital etc. 2) Window intercom kits for service window, such as bank and toll station etc. 3) Nurse calling system for hospital etc. 4) IP network Intercom system for bank,school,police station,hospital, office and etc. We sincerely welcome friends all over the world to join us in this field, hope we would get multi-win win and gain long term cooperation together.