1.Small size Surging energy,x2 n-ear wired earphones. Comfortable,Lightweight,HD call to wear,Comfortable listening experience, HIFl sound quality Noise isolation,Durable wire,Clear treble,Alto comfort,Heavy bass. 2.10 mm world,Can also be so beautiful.Bring you rich details and a wide range of sound.Not easy to fall off Comfortable to wear. Designed to fit the auricle obliquely, Avoid long-term wearing discomfort.Anti-pull wire. Durable without knotting, the service life of earphone wire is longer.3.5MM pin .Compatible with multiple devices ,widely compatible, more than you think. 3.Wear stable,enjoy exercise,half -in ear wearing design,better fit the ear canal,single side weight is only 4g,small and light size makes wearing more free and easy. Operation is more comfortable,press without pressure,smart touch,easy to control without operating the phone,convenient and fast.