Infared wireless teaching system
1 pc transmitter+1 pc speaker(or more speaker) amplifier built in
no need sound wire,

Infared wireless teaching system
1 pc transmitter+1 pc speaker(or more speaker) amplifier built in
no need sound wire,just connect power.

it's very easy to install !!

Transmitter:

1.lithium battery,can use more than 8 hours.

2.transmit 10 M distance.

Speaker:

1.Amplifier built-in.

2.can use directly by infared signal or connect to amplifier.

The Difference between infared and other wireless .

the signal won't to be confused