DUOMAN

Apparatus for transmission of communication; Audio-video receivers; Computer memory devices; Computer peripheral devices; Data processing apparatus; Earphones; Electronic sound pickup for guitars and basses; Headphones; Loudspeaker cabinets; Loudspeakers; Portable media players; Smart watches; Sonars; Sound reproduction apparatus; Sound transmitting apparatus; Wearable activity trackers; Wireless controllers to monitor and control the functioning of other electronic devices; Wireless ear buds; Blank USB flash drives