Overview:DSP Noise Reduction Technology and state of the art acoustic component, headphone produce incredible sound quality with deep bass and crystal clear treble, reduces outside noises, enjoy your favorite music and clearest answer call.Suit any sport, anywhere, anytime and any condition (NOT for SWIMMING). Different size of earmuffs give your ears more comfort.Bluetooth V4.1 Wireless Technology and Universal Connectivity - Latest Bluetooth 4.1 technology can pair with all Bluetooth enabled devices (such as Laptop, MP3 players, IOS and Android phones and tablets) and connects up to 42 feet away .Bluetooth headphone has long battery life can provide up to 5 hours music a time or 180 hours stand-by with a full charge. Specification:Bluetooth Version: V4.1Agreement: HFP HSP A2DP AVRCPSound Mode: StereoNoise: CVC6.0Charging time: 1~2 HoursStandby time: 180 HoursTalk/Playing time: 5~6 hoursOperation distance: 10 MetersConnect 2 phones: YesPower Source: Built in Rechargeable Battery 70 mAhPower input: DC5V / 200mAVoice prompts: SupportFunction: call dialing, remote answer / end / reject / switch, telephone redial, mute, volume control, English switch, smart one for two, music pause / play, up and down the song Applicable to:  For Apple IOS iPhone 7/6/5/4/ iPad SeriesFor Android Phone , SmartphoneFor Most of Devices with Bluetooth ... Packing List:1 x S3 Bluetooth Earphone1 x USB cable1 x User manul1 x Retail box1 x Earbud