Featuresr light portable and square design easy to carry when go outr made of aluminum alloy which provides a very premium lookr built in microphone support the call function when there is a phone call press the power button to answer directlyr uses cvc hardware noise reduction it gives you high definition sound qualityr 1200mah built in polymer lithium battery support 10 hours playr supports bluetooth 42 provides a more stable signal better compatibility and lower power consumpt