??HIGH FIDELITY SOUND & 10.2MM DYNAMIC DIAPHRAGM? Our MS1 Rainbows IEMs Earphones are designed with quality Dynamic Drivers and HIDIZS newly develped 10.2mm polymer bio-diaphragm dynamic driver unit, which feature like double-magnetic circuits, dual cavities, big sounstage and offer more consistent internal loss across all frequencies to deliver subtle highs and smoother bass. BUILT IN MIC & NOISE CANCELLING? Our HIDIZS Hifi in ear monitor earbuds support call and in-line control function, which is really convenient and ensures smooth communication as well as avoids the complex operation of waking up the mobile phones to control music. With sound isolation technology, this high fidelity earbuds greatly block up to 112dB of ambient noise and minimize the sound leakage. Offers a unique and immersive listening experience. QUALITY DETACHABLE CORD & STYLISH DESIGN?Our MS1 Hi-Res Headphones adopts for 0.78mm 2pin interchangeable cable design, which can easily match various mainstr