If you're looking for a tried-and-true budget headphone that sounds great and doesn't break the bank, you can easily look at the Koss Porta Pro. It's a legend in the community and a well-regarded headphone, especially at its $49.99 price point. Practically everyone has experienced or owned the Porta Pro least once in their Head-Fi lifetime. I am no exception. But when a package arrived at Head-Fi HQ with the Koss Porta Pro Wireless inside, I was naturally intrigued. A wireless Porta Pro. And thankfully, it sounds just like a Koss Porta Pro, but wireless. I've spent a few hours comparing the Porta Pro Wireless with its wired predecessor, trying to look for any differences in sound, fit, and comfort. After a while, I forgot which one I was wearing. I was keeping one on my ears and the other around my neck, and after several blind switches, I lost track... but it didn't matter. The sound is that close to my ears. So what's the difference? To start, the light blue of the wired Porta Pro is now a strong royal blue on the Porta Pro Wireless. It's a more striking appearance, with the same headband and assembly. I prefer its styling over the standard Porta Pro, as well as the beige and black/gold limited edition versions that are also roaming around Head-Fi HQ. The other difference in its style is the roughly 20-inch cord on the Porta Pro Wireless, which connects both earpads to each other, as well as holds the battery, inline mic, and controls. It is almost as if they took a standard Porta Pro and cut the cable at the top of the Y-split. The slightly thicker cable is fantastic in that it wasn't obtrusive to me in the least. I barely notice it's there throughout my day. With Bluetooth 4.1 and aptX in the Porta Pro Wireless, I've had no issues with the signal cutting out. I've always had issues with my regularly-used wireless devices cutting out when I've worn them roughly the full distance across the office, with walls, doors and whatnot in the way. My most frequently-used Bluetooth devices -- the Sennheiser Presence and Apple AirPods -- are no exception to this. I'm happy to report that the Porta Pro Wireless isn't giving me any issues when paired to my iMac or MacBook Pro when used for music and Netflix, and it worked great when paired to my iPhone 6 Plus through a few hours of chores I had to get done around the house. It is now my current go-to Bluetooth headphone for general listening throughout the workday, especially with its 12+ hour battery life. There's isn't much I can add about the sound of the Porta Pro Wireless, as I would be re-iterating everything that's been said about the Porta Pro before from many Head-Fi'ers over the years. To my ears, it's the same headphone. It's a Porta Pro, through and through... but wireless. I'm not sure why it took this long to finally make this classic into a Wireless headphone, but I'm glad it did. I feel Koss took their time and got this one right. I'm interested to see what @jude and @AxelCloris (Brian) think about it, especially since Brian regularly uses the wired Porta Pro as one of his monitoring headphones during Head-Fi TV shoots. I'm really excited about the Koss Porta Pro Wireless, and I recommend you pick one up and enjoy it like I've been doing since its arrival. I think it's a solid addition to their line, a great evolution of the Porta Pro, and a strong value at $79.99 MSRP. Well done, Koss!