for classroom infrared wireless broadcast speaker (KS168-C) has an excellent acoustic fedelity than tranditional ones. for classroom infrared wireless broadcast speaker (KS168-C)Here is the Infrared Advantages: 1.Infrared light transmit signal,High Security,Interference Resistence...

infrared wireless dule-band teaching speaker system (KS368-AB) has a larger area effect with two receiver than the single band. infrared wireless dule-band speaker system (KS368-AB)Here is the Infrared Advantages:1.Infrared light transmit signal,High Security,Interference Resistence...

infrared wireless dule-band teaching speaker system (KS368-AB) has a larger area effect with two receiver than the single band. infrared wireless dule-band speaker system (KS368-AB)Here is the Infrared Advantages:1.Infrared light transmit signal,High Security,Interference Resistence...

for classroom infrared wireless teaching speaker(KS668-A).infrared wireless disign is beneficial and harm to human for classroom infrared wireless teaching speaker(KS668-A)Functions :*The host machine adopts wall-mounted box-type design. Transmitter and accessories can be stored in the...

infrared wireless dule-band audio speaker system(ks668-ab) has larger receiving distance,up to 400sqm. infrared wireless dual-band audio speaker system(ks668-ab)Here is the Infrared Advantages:1.Infrared light transmit signal,High Security,Interference Resistence and Against String...

infrared wireless dule-band audio speaker system(ks668-ab) has larger receiving distance,up to 400sqm. infrared wireless dual-band audio speaker system(ks668-ab)Here is the Infrared Advantages:1.Infrared light transmit signal,High Security,Interference Resistence and Against String...

1)can use two microphone at the same time; 2)good quality; 3)infrared wireless amplifier is health. infrared wireless dule-band speaker system (KS368-AB)Here is the Infrared Advantages:1.Infrared light transmit signal,High Security,Interference Resistence and Against String...

1)larger receiving distance,up to 400sqm, 2)voice clearly and use anti-feedback technology, 3)no string frequency. infrared wireless dual-band audio speaker system(ks668-ab)Here is the Infrared Advantages:1.Infrared light transmit signal,High Security,Interference Resistence and...

The Infrared Wireless Microphone System for More Flexible Microphone Use and High Quality Sound  Functions:        International EIA standard 19-inch 2U high level aluminum alloy casing, easy to set up and manage, which can be equiped with the...

Making use of the IR ray to transmit audio frequency signal,wireless speaker is the best choice for small and medium-sized room KS168 ALL-IN-ONE INFRARED WIRELESS SPEAKER Characters:     High Security and String-frequency...