People that record concerts on their phones have been dividing opinion for years. Some argue that after paying so much money for tickets, fans should have the right to record footage, while others say a sea of brightly lit devices can ruin the experience for everyone, including the performers.

But a system that makes sure phones aren’t used during performances is gaining popularity among venues.

With Yondr, people entering a concert location must place their phone in a neophrene pouch. They can keep the devices on them, but once they enter the ‘phone-free zone’ the bags lock, making the phone unusable.

Accessing the device will require people leave the venue and use the unlocking station on the way out. Once they come back inside the case will relock itself.

The Guardian reports that Yondr has already been tested at gigs from Alicia Keys, Chris Rock, Guns N’ Roses, and Hannibal Buress. Louis CK and Dave Chappelle are also said to be fans.

Using Yondr won’t be optional for anyone attending events where the technology is in place. You’re probably not going to get strip searched to see if you’re hiding a phone in a prison-style manner, but getting caught using one in the venue will likely get you kicked out.

"The goal isn't to be the Gestapo," said Graham Dugoni, the inventor of Yondr. "Technology is fine but in certain contexts, it erodes the experience."

While Yondr can be used in other places where phone-free zones are beneficial, such as schools, cinemas, and theaters, Dugoni said the system will be particularly helpful for those situations you rather didn’t end up online.

"Generally people don't let loose because they are afraid of showing up on YouTube and being accountable for what they do all the time," he said. "Yondr frees people up." So no more worrying about your drunken antics at the local bar ending up on Facebook.