[. . . ] Notes  Depending on the model of smartphone, the microphone of this unit may not function, or the volume level may be low. [. . . ] Using the Answer/End, Play/Pause button* Press once to answer the call, press again to end; press to play/pause a track. Available operations for iPhone Plays/pauses a track of the connected iPhone product with a single press. Starts the “VoiceOver**” feature with a long press (if available). Note on static electricity Static electricity accumulated in the body may cause mild tingling in your ears. Español Auriculares estéreo Productos compatibles Precautions High volume may affect your hearing. If an earbud accidentally detaches and is left in your ear, it may cause injury. [. . . ] Español Auriculares estéreo Productos compatibles Precautions High volume may affect your hearing. [. . . ]