Topblue industry co., ltd. is a professional manufacturer of bluetooth products, from leading edge GPS tracker to traditional bluetooth headset. We are the sales arm and represent a mobile accessory manufacturer group. With the main sales office in the heart of global electronic goods center shenzhen, China, our factories are based in different locals in the suburban area of shenzhen. We supply bluetooth wireless (headsets, dongles, car kits, speakers, etc.), bluetooth GPS receiver (20 channels, 20 channels, 54 channels, 65 channels), bluetooth GPS data logger and GPS tracker (personal GPS tracker and vehicle GPS tracker).