JBL professional Speaker with price of 51000. 110w speaker with good quality and high range in party or public meeting. It can connect 4 other speakers also with help of aux wire. Ducking facility available it mean when you speak automatically music volume comes low. 4 channel mixer - 2 combo jacks of microphone, one instrument like guitar or paino, media player and Bluetooth connection all this in one time we can do. 12 hr nonstop battery life with charging time just 2.5 hr only. If your phone battery low don't worry you can charge from this speaker, 2 device can charge same time.