How Much Does It Cost to Hire Headphones for a Conference?

We average, we average weekly about 80 hires a week. We do brand the headphones, an additional cost so you can have your logo. So if I if I get a big conference, does it say silent disco on it? The headphones are branded the silent disco company. But how much does it cost me if I'm Virgin Atlantic and what are you going to charge me to have my brand in on my headphones? Too quid a headphone. And who's your most exciting customer you've ever hired some headphones to?