Product Name:  Portable 15" Bluetooth® Party Speaker with Disco LightWireless Source:  Bluetooth®Special Functions:  TWSDriver Unit:  15" Woofer + 1.5" TweeterMedia Inputs:  USB Port, TF Card SlotPMPO Output:  4000WAudio Format Support:  MP3Other Inputs:  MIC, AUXRadio Tuner:  FMLight effects:  Disco LightPower Source:  3.7V, 4800mAh Rechargeable BatteryBattery Type:  Built-in Lithium RechargeablePlay Time:  Up to 3 Hours (Play time will vary depending on volume level and type of media played)Accessories included:  Wired microphone, Remote control, UL Power adapter, UserFeaturesWirelessly stream all of your favorite media content via Bluetooth®Connect to other Sound Pro NDS-1517 TWS speakers allowing you to sync speakers up to 33 Feet from each other without any wiresLED (Red) Display make for an easy-to-use user experienceRelease your inner Rock star with friends and family thanks to the included wired microphoneStart the party off right with the Disco LightFull-frequency speakers pump out room-filling, high-quality audio with easeEnjoy media from removable storage devices, such as USB flash drives and Media cards via the USB input and TF card slotManually connect to external media devices via the included auxiliary input jackTune in on all your favorite local radio stations thanks to the FM tunerFully control your entertainment experience with the 5 control knobsAccessories included: Wired microphone, Remote control, UL Power adapter, User manual