We herein declare that the products that we manufactured are “DRC metal conflict-free”, the metal of gold(Au),tantalum(Ta),tungsten(W) and Tin(Sn) are not derived from or sourced from […]

 Buzzer is divided into two kinds, one is active and and another is passive. Active and passive buzzers are used to make sound for electronics.        The active […]

When the sound of the buzzer is not a crisp and simple hum, we will call it a murmur or a broken sound. The cause of […]

Sound is a vibration of air Sounder pressure level (dB) = loudness of sound Air pressure is called Sound Pressure when a sound is propagated through […]