Acoustic amplifiers; Amplifiers for wireless communications; Apparatus and instruments for recording, transmitting, reproducing or processing sound, images or data; Apparatus for recording and reproduction of sound, images or data; Apparatus for recording, transmission and reproduction of images; Apparatus for recording, transmission or reproduction of sound; Apparatus for recording, transmission or reproduction of sound and images; Apparatus for recording, transmitting and reproducing sound ...

Sound cards, wireless headsets for smart phone, wireless headsets for tablet computers