open cool dog music, click the settings icon in the upper right corner, and select equalizer. Pop-up window, change the earphone mode, or just turn off and turn on the equalizer button directly. On the mobile phone side, first, open the cool dog music client on the mobile phone desktop. Click on the top right corner. Next, click on the Viper sound effect. In the subsequent page, you can see that the headset mode is being turned on. Just turn off the headset mode.