This wireless headphone has strong magnetic speaker
with Acoustic Echo Reduction technology which reduces the background noise during phone calls which does not bother you in your conversations.
This speaker, with a modern and singular design, has the best sound-to-weight ratio among existing portable Bluetooth speakers on the market due to its utilization of a newly introduced speaker technology called "Flat Magnetic Speaker
Trotsky was everything that Stalin detested: a cosmopolitan card intellectual; a magnetic speaker
and a (very) latecomer to orthodox Leninist Bolshevism.
In addition, he also made the first full-range, push-pull planar magnetic speaker
system (one of these was reviewed by me in issue 94), and the first flat-panel computer/multimedia speaker.
A magnetic speaker
and astute business man, he probably was the first major college coach to combine a head coaching job with a job in industry -- spokesman for an automobile company.