Amplifiers; Audio headphones; Audio speakers; Earphones; Headphones; Personal headphones for sound transmitting apparatuses; Personal headphones for use with sound transmitting systems

Technology delivering simultaneous low, mid and high frequencies through in-ear monitors

Technology delivering simultaneous low, mid and high frequencies through in-ear monitors

Amplifiers; Audio headphones; Audio speakers; Earphones and headphones; Personal headphones for sound transmitting apparatuses; Personal headphones for use with sound transmitting systems