Mini503 wireless bluetooth stereo earphones headphone sport running music headset with Microphone for iphone 5/6 smart phone samsung huawei xiaomi htc sony etcFeatures:Multipoint Support: 2 connecttions simultaneously.Touch-button call answer /end 、redail、volume control and voice dailing.Over-the-head and light weight design for comfortable fit.Noise cancelling technology provides crystal clear sound quality.Access code correction and audio transcoding.Mic can be rotated lest and right、 fits comfortablely on either ears.Concave earphone design can enlarge the voice、listen more clealy.Compatible with most Bluetooth enabled device、such as mobile phones、 laptops and so on. Audio transcoding Specifications:Bluetooth V2.1+EDR Class IIFrequency:2.4GHz-2.4835GHz、ISM BandBluetooth Support:Headset、Handsfree、A2DP and AVRCPChipset:CSRTalk time: 2-3 hoursStand-by time: up to 250 hoursMusic Playing Time:up to 7 hoursHeadset and handsfree profileRechargeable battery Li-polymerOperation Range: 10mColor: black、white、blue、gold、redWeight: 40gPackage include:1 x Bluetooth Headset1 x USB Charger1 x User Manual