Product Description:Krypton KNMS5035 Portable Rechargeable Trolley Speaker - This speaker is ideal for parties and large gatherings or large spaces. The Impedance: 4 ohm Output with extra bass will blow you away. The wireless Mic can be used to sing along with music or make announcements. Additionally this speaker also has the extra features of a USB port through which you can play your music by connecting a Pen Drive, an Aux in slot to connect various other media devices, SD card reader with audio Playback & FM radio. The speaker has an inbuilt rechargeable battery. It can be used for outdoor activities, advertising campaigns and recreational activities. It is designed with innovation and is decorated with Ball stage lights on the top and LED lights woofer to set up the mood for a celebration. A perfect combination for a party.Features :LED DISCO LIGHT: The Bluetooth speaker gives an exceptional audio performance and has an elegant textured finish. It is designed with innovation and is decorated with embedded disco lights to set up the mood for a celebration. A perfect combination for a party.BUILT-IN BATTERY - Built-in rechargeable battery of 7.4V/1800MAH. Provides Extended playback, enables you to stream music for many hours.ONE WIRELESS MIC - 1 Wireless Mic for enjoying karaoke and singing MIC Echo Control & MIC Volume ControlREMOTE CONTROLLED AT A DISTANCE - Full function remote control works even at a distance of over 10 meters.PLUG & PLAY - This speaker is USB powered which means that you can install the speakers very easily. Simply connect the USB cable to your computer and plug the speaker and it will channel all your sounds.