EMB PKL5000 + Speaker 7 Hours Rechargeable Speaker System Built-in Bluetooth/SD/MMC/USB2x Wireless Microphone Pacakge Inlcuded: 1 Speaker + 1 Speaker Stand | 10" PA speaker sytem | Max power: 1800W | Sensitivity: 97dB Frequency Range: 40Hz-20kHz | Built-in Bluetooth - USB/MP3 Player - VHF Microphone Treble and Bass Control | Mic. Echo & Volume Control | Music Volume Control Microphone Line Input Built-in Rechargeable Battery |Installed Handle and Wheels for Easy Carry | Power Source: AC 120V / 240 V