Features and Specifications - Delivers Durability, Flexibility, and Outstanding Audio Performance with Exceptional RangeThe Speaker System is Perfect for Home Entertainment, Seminars, or Any Other Venues and Events15" High-Efficiency WooferBuilt-in Bluetooth Compatible Allows Your Speaker to Work with Bluetooth Enabled DevicesTrue Wireless Stereo (TWS) - Allows You to Connect 2 Speakers Via Bluetooth with TWS Technology So they Can Play at the Same Time and You Can Double Your Audio OutputRechargeable Battery (12.8V/5.5A/5500mah)USB, Micro SD & AUX Inputs Allows You to Connect Your Non-Bluetooth External Audio DevicesFM Radio1 Mic Input (1 wireless mic included)AC Power Supply - 100-240VDC Input CompatibleBuilt-in HandleRemote Control, 1 Wireless Microphone IncludedSystem Type - 15" High-Performance SpeakerFrequency Response - 50Hz-20KHzSensitivity (1w/1m) - 75 +/- 3dBImpedance - 3 OhmsDistortion - 1% 1KHz 1WPeak Power Capacity - 600 WattsRMS Power - 2 x 20WAccessories - Manual, Microp