Advantages of SMD Magnetic Buzzer and Piezo 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.

SMD Piezo Buzzer

Advantages: 1.Current consumption is very small.In general,it just need 2mA current when operating                          at 3V.

                    2.It can be used at any voltage between 3-20V.