Our company established in 1995, we are one of the top 10 chinese company who is manufacturing and exporting quality GSM alarm system,car alarm system, car parking aid system, car window closer and central lock system. The products are awarded with CE certificate. In the same time, we also are famous for OEM and ODM service.If you should have any questions, please do not hesitate to email me,and I will offer the details of product and relevant information to you ASAP. Wish we can establish mutually beneficial relationship in the near future!