12 full-frequency speakers pump out room-filling, high-quality audio Bluetooth functionality allows you to wirelessly stream all your favorite music content from Bluetooth-enabled devices in high-quality audio Lighting effects that dance along with the music Sync speakers up to 33 feet from each other without any wires Release your inner Rock Star with the included wired microphone Enjoy media from removable media storage - USB flash drives and TF cards FM tuner to enjoy your favorite local radio stations FM tuner Three master control knobs for full audio control Wireless Source: Bluetooth Speakers: 12 Woofer + 1.5 Sub-Woofer Media Inputs: USB Port, TF Card Slot PMPO Output: 4000W Audio Format Support: MP3 Other Inputs: AUX, MIC Radio Tuner: FM Volume Level Controls: Master, Mic, Echo Power Source: 3.7V, 1800mAh Rechargeable Battery Battery Type: Built-in Lithium Rechargeable Play Time: Up to 2.5 Hours Accessories: Wired microphone, Remote control, UL Power Adapter, User manual