Bluetooth functionality allows you to wirelessly stream all your favorite music content from Bluetooth -enabled devices in high -quality audio. Connect to other Sound Pro NDS -4503 TWS speakers allowing you to sync speakers up to 33 feet from each other without any wires. Start the party off right with the Disco Lights. Two 4 full-frequency speakers pump out room -filling, high - quality audio with ease. Enjoy media from removable storage devices, such as USB flash drives and Media cards via the USB input and TF card slot. Tune in on all your favorite local radio station thanks to the FM tuner. Built -in carrying handle allows you to move the speaker anywhere easily. Accessories included: USB charging cable, User manual.