Portable wireless speaker; portable audio systems comprising electric audio playback units; mobile audio speakers; portable audio speaker for use with telephones, mobile phones, cellular phones, MP3 players, portable and handheld digital electronic devices, and computers; portable audio equipment, namely, portable DJ audio speakers, microphones, speaker stands, audio amplifiers, portable subwoofers, rechargeable battery packs, portable musical instrument amplifiers and speakers, pro audio speakers, line arrays in the nature of loudspeaker systems, subwoofers and amplifiers