Features: - Compact, Portable and Powerful Pa Speaker System - Karaoke Microphone Talk-Over Mode - Bluetooth Wireless Audio Streaming - Built-in Rechargeable Battery - Fm Radio with Digital Led Display - Usb Flash and Micro Sd Memory Card Readers - MP3 Digital Audio File Compatibility - Audio Recording Function - 1/4 Microphone Input - Aux (3.5mm) Input Jack - Connect and Stream Audio From External Devices - Full Range Stereo Sound Reproduction - Impressive Bass Response - Echo, Bass, Volume Adjustment - Convenient Carry Handle and Rolling Wheels - Optionally Powered via External Device, 12V Connectors - Rugged and Heavy-Duty Design Bluetooth Connectivity: - Built-in Bluetooth for Wireless Streaming - Works with All of Your Favorite Devices - (Smartphone, Tablet, Laptop, Computer, etc.) - Bluetoo