Features:Shell Material: PlasticColor: BlackCircumference: 43cm/16.8inchCharging Voltage: DC5V 150mAhWorking Current: 25-35mABluetooth A2DP Working Range: 10mOutput Power: 35mWFrequency Range: 2.401-2.480GHzDistortion Factor: ≤1%Frequency Response: 20Hz-20KHzWorking Time: Music/ HuaTong state 6-8

Features:Shell Material: PlasticColor: BlackCircumference: 43cm/16.8inchCharging Voltage: DC5V 150mAhWorking Current: 25-35mABluetooth A2DP Working Range: 10mOutput Power: 35mWFrequency Range: 2.401-2.480GHzDistortion Factor: ≤1%Frequency Response: 20Hz-20KHzWorking Time: Music/ HuaTong state 6-8 hours (The Volume will affect the time)SNR: S/N≥95Charging Time: 1h-2hTalk Time: 8-15 hours, play time: 6-10 hoursMusic Playing Time: up to 10 hoursFrequency Response: 20 ~ 20000HzSensitivity: 80dBImpedance: 32 ohmsSpeaker Power: 2 x 18mWPackage Content: 1 x Bluetooth Headset 1 x Charging Cable