| 摘要 |
A protective case for a mobile phone, having a sound amplification function. The protective case comprises a back cover mounted on a back of the mobile phone, the back cover comprising a back cover main body for fixing to the mobile phone and a reflection piece slidably disposed on the back cover main body, the reflection piece comprising a reflection piece main body and a reflection rotating piece rotatably connected to the reflection piece main body. When the reflection piece slides out of the back cover main body, the reflection rotating piece is rotated upwards such that a reflection cavity for enhancing a sound played back by a speaker of the mobile phone is formed between the reflection rotating piece and a frame of the mobile phone, the speaker being disposed on the frame of the mobile phone. |
