Wireless receiving sound column 1DTS511

IP Outdoor Waterproof Sound Column - Economy IP803

Transmission equipment TP-150

Active speaker XG-80

Inductive Audio Alarm - Solar Powered GYPD-05

Transmission equipment TX-700

I3 industrial computer (11.6 inches)

IP Outdoor Waterproof Sound Column - Economy IP802

4G receiving device TYN1D-01

Sound column YZ-50