The quality of these headphones has pleased me so much that it's prompted me to write my first review!
First of all ease of use, brilliant. Simply plug in to your existing headphone socket, select an RF output channel and fiddle with the tuning dial on the headset for a few seconds and voila. All done. I didn't even look at the instructions. It also comes with a jack adapter so i could use it in my amp!
Quality: Fantastic, considering they're wirless i expected the occasional drop out a bit of background hiss etc but nothing. The sound clarity is amazing considering the lack of wires! Even the bass response is impressive.
Range: I'm not sure about 100m, but i have a 4 story town house, the receiver was in my room on the top floor, they wer still working perfectly in the kitchen on the botttom floor, through doors, walls, floors, they are quite amazing.
Recommend this product to anyone who has the need for wireless headphones. Top drawer for the price.