A backup plan
"If anything can go wrong, it will," is a common adage. It's referred to as Murphy's Law. Any scenario that may happen will be handled expertly by a skilled DJ service. DJs should always have a backup of their most important pieces of equipment, even if it may not be realistic to have a spare of everything. You must have a backup microphone, laptop, speaker, and cables. Make sure your DJ has a backup plan and a set of extra equipment.
The DJ For Kids you hire is an employee and not a guest. Make sure you clarify this while choosing a DJ service. They aren't there to get wasted, hit on anybody, linger over meals, entertain visitors with a song and dance, or behave in any other manner that isn't appropriate for a vendor. There is a lot of unprofessional behaviour, such as enormous billboards promoting their offerings or TV screens with their brand. Those who wanted to hire them after the wedding might either ask for their contact information or request a business card. In no way, shape, or form are they permitted to utilise your wedding as a selling platform.