15" Portable Bluetooth Speaker with True Wireless Technology Features and Specifications - Delivers Durability, Flexibility, and Outstanding Audio Performance with Exceptional Range The Speaker System is Perfect for Home Entertainment, Seminars, or Any Other Venues and Events 15" High-Efficiency Woofer Built-in Bluetooth Compatible Allows Your Speaker to Work with Bluetooth Enabled Devices True 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 Output Rechargeable Battery (12.8V/5.5A/5500mah) USB, Micro SD & AUX Inputs Allows You to Connect Your Non-Bluetooth External Audio Devices FM Radio 1 Mic Input (1 wireless mic included) AC Power Supply - 100-240V DC Input Compatible Built-in Handle Remote Control, 1 Wireless Microphone Included System Type - 15" High-Performance Speaker Frequency Response - 50Hz-20KHz Sensitivity (1w/1m) - 75 +/- 3dB Impedance - 3 Ohms Distortion - 1% 1KHz 1W