PRODUCT FEATURES : Includes one wireless mic audio cable car charger cable charging cable Has got a unique appearance design noble generous Built in power amplifier system can be directly used with CD/DVD/PC audio source Manual all wooden box production high grade appearance of the panel Can be used alone AC 220V power supply and DC 12V power supply The built in maintenance free rechargeable batteries also can use an external battery Dual microphone input simulating reverberation effect Wireless acoustic microphone built in antenna Built in USB/SD card decoder Guitar input control alone Output Power : 100 W Input Level : 500 mV Signal to Noise Ratio : 80 dB or higher Degrees of Separation : 35 dB Frequency Response : 60 Hz to 20 KHz Power Input Voltage : 220 v/50 Hz R.M.S : 500 W Color : Black