Believe in yourself、 you can do better.Features:100% brand new and high quality.Hand-free for phone callings and music playerMulti-function、 Volume Control、 Bluetooth Speaker、 Hands-free、 TF CardSpecifications:Condition: newColor: white/pink/greenWorking range: up to 20mWorking time: 4hoursFrequency response: 280hz - 16KHZVoltage capacity: 3.7V500mAhDimension: 100*100*90mmWeight: 278gPackage include:1 X Speaker1 X Battery1 X USB Cable1 X Audio CableSolving your any problems.