Dimension:68*58*198mmMaterial: ABS + Silicon + MetalUnit weight:362gSpeaker power:3Wx2Speaker diameter:?40mmImpedance:4ΩFrequency Response:275 Hz-20KHzSignal to Noise Ratio≥92dBBluetooth profile: Bluetooth 3.0+EDRBluetooth Chips: ISSCWireless range: up to 10mBuilt-in battery: Li-polymer battery 3.7V/800mAhPlayback time:6-8 HoursTalk time:4-5 hours