In November 2019, Teoharov was one of exhibitors at the international festival Hi Files, which was being held in Belgrade. At the festival, which is attended by domestic and world manufacturers and distributors of audio and video equipment, the set of products we presented included:
Amplifiers: integrated amplifier & power amplifier
LoudSpeaker: Custom made LS1 active, Active Loudspeaker system & Loudspeaker LS2
Power distributer & signal and power distribution cables