Audio and video equipment for transmitting, receiving and playing audio and sound, namely, distribution amplifiers for audio and video signals; Audio and video equipment, namely, apparatus for recording, transmission or reproduction of sound and images; Digital sound processors; Radio receivers and monitors for reproduction of sound and signals; Audio electronic components, namely, surround sound systems; Audio equipment for producing sound, namely, audio speakers; Audio and video equipment, namely, controlled volume pumps; Audio and video equipment, namely, computer-controlled apparatus for testing and measuring radio frequency signals
Electrical and Scientific Apparatus