elegant design,simple operation, easy to carry,stable performance, low noise, good response, low energy consumption frequency response 50Hz-13KHzMaximum output 10Woperating temperature -10°C-45°CMainframe About 245 gram (exclusive of battery)Dimension 143*84*47.5mmCharging time About 10 hoursMicrophone Capacitive single orientatedPower Supply 6V,800mA power supply or DC1.2V*5 batteryLoudspeaker 4 ...