Features:The R539 smart earphone Bluetooth is a CSR4.0 AB1513 Wireless connected.Built in HD MIC And Music stereo,it's most ensure different area user can works well.The latest Bluetooth 4.0 can compitiable 99% bluetooth Device anywhere all over the world.you gain an amazing communication device that works like a cell phone on your smartphone.The Smart CVC6.0 Noise Canneclling ensure this earphone have very neutral Sound, Excellent performance of Wearing comfort,Voice can ensure people to listen to pop music on demand, and appearance design also seize the eye of a lot of men and women.The top quality and Fashion design is important reasons of this Earphone will definitely popular. both at home or outdoors, either long or short time, can choose this headphones. it can be said is a trendsetter Street necessary headset products.Specification:Model Name: Bluetooth Earphone R539Style:Ear Hook Wireless HeadsetColor:Black/White/BlueMaterial: Plastic & RubberSound Lever: Heavy Bass Perfect precise SoundFrequency Rance: 20-20000HZProducts Impedance: 16Ω ohmsCharger: Micro USB PortSupport Format:P3,MP4, WMA WAVControl Buttons:Play/Pause/ Call / Receive/Volume/Last/Next Support System:IOS / Android /WindowTalk time: 4.5 hoursBluetooth Version: V4.0+ AB1513Compitiable Devices:Mobile phone,Tablet pc,Laptop,MP3 etc  Packing List: 1xBluetooth headset1x USB cabl1x User manual