super quality smart appearance suitable for all cell phones within bluetooth seven colors to choose Special Featuressuper qualitysmart appearancesuitable for all ... *35mmVarious colorsblack,white,red,green,yellow,silvery,blueWireless FeaturesBluetooth versionBluetooth V2.1+EDRFrequency range2.402-2.480GHzConnection distance10-20mSupport agreementsHSP,HFP,A2DPMatching ...