Review on Apple MFi Certified Double Lightning Headphone Splitter: Audio, Charge, Sync, Music Control & Call Support for iPhone 12/11/XS/XR/X 8 7/iPad by Tony Elliott

I bought this because I wanted to charge my phone while recording myself using a karaoke app. You have to use headphones which quickly drains my phone's battery. This is a very slow charger. So I found that it helped my phone hold a charge longer, but the battery life still slowed down when recording videos. That being said, it will charge well when you're doing something else on the phone, but again, this is a slow charge so don't expect it to charge fully for hours. All in all, for $7, it's not that scary. I just wish it worked better when shooting videos.