Established in 2004, Shenzhen Heavensea Technology Co., Ltd. is a professional manufacturer of Bluetooth GPS receivers and waterproof carry bags. Meanwhile, in order to provide better services for customers, we also offer car LCD and car DVD to furnish our product line. Each month, we deliver 500,000 GPS units and 1,000,000 bags to buyers in the US, Europe and Southeast Asia. One of the earliest suppliers of Bluetooth GPS receivers We began to supply Bluetooth GPS receivers in 2004 (one of the earliest in mainland China), when our competitors were obstructed by software problem. We have 15 R&D staff who have expertise for GPS. The transmitting range of our Bluetooth GPS receiver is 10m. Currently, we have six models independently developed by ourselves. Eight types of waterproof bags We supply dust-proof and humidity-proof waterproof bags for portable GPS receivers, PDAs, MP3 players,