Amerthing Pure Copper Faraday Fabric RF & LF Electromagnetic Fields Gold Color Blocking Fabric 5 Meters (197"x43" inch)

Good stuff definitely block the Bluetooth signal. You may have to double it up, but it works good.

This item does the job of blocking unwanted RF Signals.It can be used as a scanner block protector.It is very easy to work with for your customized needs.The material is very thick while being flexible enough to easily cut or fold.Additional tools will be required for each custom application.It is a very Durable Copper material and you cannot beat it's Value for Money.

I was looking for a better solution to actual grounding than the cotton sheets with the silver thread in them. They don't remain conductive for very long, especially after you wash them. I'm going to try using this copper-like fabric to see if I have better benefits from earthing. For instance, my previous cotton sheet had a resistance from the outlet to the center of the sheet of over 2 megohms. This copper sheet measures at 0.3 ohms from outlet to center of the sheet, which is exactly what I wanted. Something that has way more conductivity than the typical products being sold commercially.Is it comfortable? It's surprisingly better than I thought it was going to be. It's a bit like being on one of those plastic bed wetter sheets, but not too bad. I will know more after I've slept on it for a while to see how it holds up, how well the conductivity holds up. But for the price, this may be a big upgrade compared to the 80 dollar sheets that wear out in 3 months' time.I'm including a picture of the 2m option to show how much of my queen size bed it covers.EDIT: I'm updating my review because after about a month of use as a sheet the material has basically become non-conductive. On day one it had nearly 0 ohms of resistance from end to end and now from corner to middle it has about 2 megohms of resistance. It may still be beneficial as an earthing sheet, but we're talking a factor of millions of ohms of resistance in just a month's time. The sheet is starting to randomly discolor in places. I'm not a sweaty sleeper and it seems to not like any moisture and may be picking up corrosion from the air. I'm going to keep monitoring the conductivity and will update my final findings. I'm a guinea pig running an experiment, so maybe hold off on sleeping on these just yet. I will say that they feel silky and very comfortable to me. One thing I did need to do is sew all four edges because this material frays terribly like polyester.

This one was thicker than the same product from the same company that I ordered a week later. The bigger size and it was much thinner. Disappointed. They don't match on the wall. -- Amerthing Pure Copper Faraday Fabric RF & LF Electromagnetic Fields Gold Color Blocking Fabric 5 Meters (197"x43" inch) And no, you can't iron the wrinkles out of either. Otherwise they both help some with blocking the RF radiation.

As intended

Bought this faraday cloth to make my own earthing sheet for my bed. Easy to work with and soft. Bought faraday tape to put on outside edge to keep material from fraying. Bought ekg pad and attached to the cloth. Bought the grounding cable. Once installed on my bed I tested to see if the material conducted and it does

I use a lot of silver to block emf but find this is at least as effective or better and more affordable. I’ve bought this twice and will but more. Very effective blocker

not pure copper.. information in the included states '" coating against corrosion, copper layer,conductive base, polyester.not 100% copper. misleading, not what I was looking for.