Design And Construction Of A Rechargeable Wireless Public Address System.
Design And Construction Of A 50W Public Address System.
Design And Construction Of 20W Wireless Public Address System.
Design And Construction Of A 100W Public Address System.
Design And Construction Of 4-Way Channel Audio Mixer With Public Address System.
The Design And Construction Of A Mini Public Address System.
Design And Construction Of A Public Address System (Pa System) With A.C And Battery Power Source.
Design And Construction Of A 500W Wireless Public Address System (Pa System).
Design And Construction Of A 16W Public Address System.
Design And Construction Of A 250W Wireless Public Address System (Pa System).