Upgraded Pyle Professional Portable PA System, Amplifier With Built-in Handheld VHF Wireless Microphone, Bluetooth, Battery Rechargeable, MP3, USB, SD, 1/4", 3.5mm, Great for Karaoke PORTABLE & COMPACT: The portable pa system is lightweight and features a convenient carry handle for easy transport. Built-in rechargeable battery and wireless VHF handheld mic make it perfect for a karaoke, house parties or outdoor events. STREAM AUDIO: The karaoke machine includes built-in Bluetooth for wireless audio streaming from all of your favorite devices including iPhone, Android, Smartphone, iPad, Tablet, Computer, etc. Connect digital files via USB flash/SD memory card readers. PUBLIC ADDRESS SYSTEM: Use the PA speaker system as a public address microphone and active speaker for crowd control, professional events, etc. Included 3.5mm audio output can connect to external speakers with full range stereo sound reproduction. SOUND CONTROL: The Bluetooth PA system boasts an impressive bass response, as well as echo, bass, and treble audio configuration controls. POWER OPTIONS: The Pyle PA system can be powered via the built-in rechargeable battery, or battery operated with 1 x '9V' battery or can be simply plugged-in and powered with the included power cable.