能量控制
| 充电电源 |
USB |
| 电源保护功能 |
Short circuit |
Music Power Bank 4000 mAh - white
Take out the product top cover, insert the two 3.5mm audio plugs to the audio port of port of the product and of the phone. LED light turning blue means the connection is successful. Adjust the volume and press the play button on the phone, the product will recognize the audio signal automatically and play.