U.S. federal trademark · Serial No. 77153484 · Reg. No. 3585235
A sophisticated 4 channel infrared receiver/amplifier, with true stereo sound, remote control capability of the infrared wireless microphones and auxiliary inputs from the teachers microphone, 4 stereo auxiliary inputs, advanced public address input that accepts either a 70volt or 25volt input directly from the paging system and mutes the auxiliary inputs when the paging announcement is being made, RS-232 computer interface, teacher voice mute where the teachers voice mutes the auxiliary inputs when he/she is speaking, 100 Watts true RMS audio power, 8 speaker outputs, 8 speaker volume controls, master volume control, and 3-band equalizer
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.