The Sound Traveler backpack speaker delivers durability flexibility and audio performance. 2 x 6.5 inch Portable speaker with Bluetooth and LED light panel. Great for home entertainment seminars and other events. True Wireless Stereo (TWS) - connect 2 speakers via Bluetooth for twice the audio output. Adjustable and removable shoulder straps. Light show with colorful LED lights dance to the music. USB Micro SD and Aux inputs. Built-in FM radio. 1 Mic input. Rechargeable 4500mAh battery. Includes: Remote control. Wired microphone. Charging cable.