phiseco wireless earbuds, syllable truly wireless headphones with charging box noise cancelling sweatproof bluetooth earphones for iphone ipad, smartphones tablets, laptop and more

in stereo mode,when you use it as a pair, both earpieces can control the media (such as play/pause, play next) from its own buttons, but only the main earpiece(r) has the control of phone calls ( such as answer/ hang up/ reject/mute/resume a call)....