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2016 Metal Bluetooth Speaker 20W 4000Mah HiFI Super Bass Wireless Portable Speaker For Mobile Phone Handfree Power Bank Speaker Product Description Model No. S400Bluetooth Version CSR4.0Power 2 * 3WBattery capacity 7000mAhVoltage DC5VS/N 85dbWorking distance 10mFrequency response 40HZ-19KHZMaterial ABS + MetalWeight 580gColor Black, Orange, Khaki, Green Product Show