Volkano Pro VPA300 Mini PA System with Wireless Microphone

8 " inch speakerProfessional Battery SPEAKER BOX With 2 UHF wireless mic2 Way active speaker box with rechargeable battery Woofer, Magnet: 30oz(120mm)Voice Coil:1.5''KSV (38mm)Frequency Response: 50Hz - 20KHzSensitivity: 92dB (+/-3dB)Tweeter: 25mm .Driver Amplifier Voltage: AC100-240 V /60-50 Hz UNIVERSAL Rechargeable battery:12V, 7AHPower: 100WWith MP3, USB , SD card input,BLUETOOTH ,TWS