Review on JAM Audio Out There: On-Ear Bluetooth Headphones with 17 Hours Playtime, 50 ft. Range, Active Noise Cancelling, Hands-Free Calling, IPX4 Rated, Sweat & Rain Resistant - Black by Ham Channell

I use a Kabota grass trimmer and it's the loudest. I couldn't find a bluetooth headset to listen to music with my mp3 player for 5 hours so the motor wouldn't drown out my music. This Bluetooth jam headset does the job, and even without using the noise-cancelling switch, it's decent and loud. But as soon as I turn on this switch, the sound of the roaring tractor engine disappears, the music sounds great with no loss in quality. What a great price, better than any noise canceling headset I have found so far.