Koss UR20 vs NAD VISO HP70

We couldn't find enough data on either product to be able to come to any reliable conclusions. We highly recommend that you take a look at some other options in the $30 and $370 budget ranges instead.

The Koss UR20 hasn't managed to perform well enough to earn a place in any Wireless Headphone roundups conducted by sources that do their own, high-quality, hands-on testing. That alone makes it a hard product to recommend.

Taking a look at the NAD VISO HP70, we found that it hasn't managed to perform well enough to earn a spot in any Wireless Headphone roundups done by sources that conduct their own, high-quality, hands-on testing. That alone makes it difficult to recommend.

As a last step, we wanted to do a head-to-head Koss UR20 vs. NAD VISO HP70 comparison of their review performance but, unfortunately, weren't able to find any review ratings on either product.