Aubern PA Speaker is design from 8” Subwoofer up to 15” Subwoofer, Built-in with Tweeter becomes a small Performance Speaker System. It also built in with Wireless Microphone VHF & UHF Frequency which have up to 50m range. Built in multi input such as USB, SD Card & Many Jack/Connector input and also Bluetooth make PA Speaker is multifunctional. Application is variety, could be use in anywhere, anytime. Easy installation, an ideal tool for small and portable application.