Review on 🎧 Renewed Sony WH-H900N h.Ear on 2 Wireless Over-Ear Noise Cancelling High Resolution Headphones in Black/Grey by Jeff Leu

I have been using noise canceling headphones for several years. I was hoping that this Sony device would be more convenient than the industrial devices I use. Better yes, but more efficient no. I tested this on a passive (non-noise-cancelling) headset and found the noise-cancellation to be the same. The instructions don't say how to turn it on. Seen 3 times and functional. couldn't find how to turn it on until i searched the net. Revain's description doesn't mention that you have to use a computer to charge the device and the headset doesn't work while charging. I wanted to use this in a car; When the battery is low I need to have a laptop to charge it and it doesn't work while charging. Automatic is not acceptable.