Quartz crystal devices are used in many everyday electronic goods, such as smartphones and other information and communication systems, high-resolution audio products and other audio-visual equipment, and automobiles. The smartphone enables you to communicate with people throughout the world and obtain desired information whenever you want and wherever you are. Useful smartphones use radio waves to send and receive voice and text. The quartz crystal device is the component that accurately and stably generates a reference signal for radio waves.

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