Dongguan NL Electronic Technology Co. , Ltd. Is a high- Tech manufacturer specializing in auto electronic products and audio appliance products in China. We provide auto security products such as GPS & GSM vehicle tracking systems, Air- Pressure alarm system, Cnetral door locking system, One way & two way car alarm systems, Navigation systems, Parking sensors and window closing system. The audio appliance products including guitar CD player, Cans and bottles CD player, Helmets CD player and balls CD player, Giving excellent solutions to the world's top automobile companies.