Krypton KNMS5394 speaker is ideal for parties and large gatherings or large spaces. 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 the slot to connect various other media devices, audio Playback, a Mic, and FM radio. The speaker has an inbuilt 800mAh rechargeable battery. It can be used for outdoor activities, advertising campaigns, and recreational activities.