Product information: Power type: Rechargeable Material: ABS + aluminum alloy Power: 5W Frequency: 20HZ-20KHZ Signal-to-noise ratio: ≥ 75db Distortion: ≤ 0.1% Charging voltage: 5V Battery: 3.7V/400mAh Speaker: 3W/4Ω/27mm Distance: 10 m Supported: Bluetooth + TWS Product Size: 40 * 28mm (length * width * height) Color: White