Review on 🔌 DROK Dual Power Adapter 3A/15W: 8-22V to 5V Double USB Cable Connector for iPhone, iPad, Nokia, HTC by David Boone

I bought this product to power a small bluetooth chip that I use for my DIY radio. While this module provided the 5V power needed to power the module, it was interfering with the radio, causing an annoying hum in my speakers. After troubleshooting I found that it was caused by this device when I changed the 5v power supply and the hum was resolved. I can't say if it's suitable for enabling smart devices as I haven't tested it on that, but I definitely wouldn't recommend it for audio projects.