You can buy a cable for your model mobile phone to convert 3.5 headphone jack, some mobile phone accessories stores, and then plug in your active speaker on the line, the mobile phone itself is generally to play three-dimensional format music, and simulate a variety of surround sound effects can be adjusted, but some low-end models may not be oh, as long as the player is open, your headphone jack has signal output to Speaker, do not have to adjust, these hope to help you solve the problem