I needed this phantom power supply unit, so I could power my condenser microphone. I have to say, "it works perfectly and gets the job done without any flaws". Overall, it is packaged well and comes with everything I needed. The package includes: phantom power supply, power brick, power cable, and an instruction book. The unit is light, but the body is made out of metal. Therefore, I consider it to be durable. Do you need an easy way to tell if the phantom power supply is on or off? Well, the LED light will turn blue when the phantom power supply is on. Now, I consider that to be an easy way to tell. In addition, the phantom power supply has no noise when it is on. I tried numerous phantom power supply brands and could not find one that made no noise. I was very impressed with this feature!