| 摘要 |
The present invention relates to a micro speaker which forms double echo spaces by dividing an echo box of a sound to reduce current consumption needed to generate the volume of the same level compared with an existing speaker. According to the present invention, provided is a micro speaker which is a micro speaker for converting an electric signal into a sound signal and comprises a main vibration space having a diaphragm of a sound generating unit vibrating air to generate sound arranged; an auxiliary vibration space separated from the main vibration space by a partition; and a penetration hole formed on the partition to connect the main vibration space and the auxiliary vibration space. |
