OFILE Magnetic Buzzer manufacturing device Your reliable partner in acoustic components technology. Futtronics Ltd. was founded in 2006 as a private limited company in China. The company is specialized in development, production and sales of acoustic components such as buzzers, speaker, ultrasonic sensors, siren and piezo element in China. In order to be able to continuously deliver the highest quality, our way of working is characterized by extensive planning and precise execution. Buzzer Manufacturer in China With successive creativity, our magnetic and piezo buzzers feature a variety of different kinds of profile buzzers as well as higher decibel model to provide multiple options to your challenging needs of next design.