IP External Waterproof Sound Column - Engineering Type IP702

Sound column YZ-30

AC/DC constant impedance amplifier LY-202BT

MP3 Bluetooth Network Power Amplifier (260W)

Bihang BG-15

Feeder K50-5

Receiver RX-6100

IP Ceiling mounted Coaxial (5 inches)

Transmitter TX-100

Network Multimedia Teaching Speaker T-7707B