The vibrating motor is designed to cause vibration during calls and text messages, so that in noisy environments you can not only hear the received message on an Apple iPhone, Meizu, Samsung, Sony, Huawei or other phone, but also feel it. There are two types of vibration motors (ERMs) that have an unbalanced mass and when it rotates, there is vibration and a vibration coil that is round and inside it there is a mass with a spring that creates a vibration when it is turned on.
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