Buzzer and Sport
A buzzer is a sounding device that can emit a short sound. Although it may seem unconspicuous, it may sound somewhat unpopular, but in everyday life it uses a "weak" voice to prove its existence. It...
Magnetic Buzzer
SMD Magnetic Buzzer Advantages: 1.The volume of buzzer can be made very small.(Length and width can be made as 4MM). It can save lots of space. 2.Its sound is the highest in same volume product....