By Hadas Kuznits

PHILADELPHIA (CBS) — Silent Philly celebrates one year on Friday night at District Nine nightclub at 460 North 9th Street and they’re marking the occasion with a party, but if you’re not in on the fun, don’t expect to be able to hear the music.

The Silent Philly parties are silent, because participants are given headphones through which to listen to the music of the event. President Eddie Ross says those headphones can be taken on and off at will.

“It’s much easier to have a conversation, it’s much easier to get a drink from a bartender, you don’t have to scream in anybody’s ear. It’s a really fun time in a place where you don’t lose your hearing because you control the volume on the headphones, as well.”

Partygoers choose between three channels on their headphones, which correspond to three live DJs.

“It’s funny, I mean, we’re used to it now because we’ve seen it so much. We’ve done a slew of events over the last year and we see people singing and dancing to you know, no music until you put the headphones on them!”

He says they can only trule understand the Silent Philly experience, once they put those headphones on.

“I’ve literally seem people start singing and dancing in front of our check-in table; and then they don’t want to turn in the headphones at the end of the night, because that’s how much fun they had!”