and
H900A transmitter have 7 FM frequencies
to allow 7 coaches to instruct their teams
at the same time. Coach use H900A
transmitter to talk with the students during
the training session. Give instant feedback
to the students. Each transmitter can talk
to many students, no quantity limit. Surely, if there is only one coach in the site, he can
talk to different students by adjusting the
channels without disturbing to others.