The Good: The bass-rich Klipsch R6i In-Ear Headphones are comfortable to wear and offer a tight seal thanks to Klipsch's oval-shaped eartips. The flat-cord design is equipped with a three-button inline remote and microphone, and Klipsch's well-designed carrying case is included. The Bad: The R6i headphones lack treble detail. The Bottom Line: If you're looking for comfortable in-ear headphones with very plump bass, the Klipsch R6i model will do it, but they're also short on detail and clarity. In the past, Klipsch's sub-$100 in-ear headphones had a more neutral sound profile that was a bit of a counterpoint to the bass-hyped sound of Beats and other popular brands targeted at a more youthful audience.It came as something of surprise then that the company's R6i, a $100 in-ear model (\u00a379 in the UK, "coming soon" in Australia) that you can get for closer to $80 online, is a bit of a departure from previous models like the S4i , S4i II , and higher-priced X7i .Like those models, the R6i in-ear headphones, available in black or white, come with the company's patented oval-shaped eartips that make it easier to establish a perfect seal than round tips. It also has a tangle-resistant flat cord and an inline three-button remote and microphone for hands-free calls and control of music on Apple's iOS devices. A version without the inline remote, the $80 (\u00a369) R6, is also available.The R6i headphones are lightweight and comfortable to wear. They also do a decent job of sealing out ambient noise -- so long as you get a tight seal, of course. And they come with the standard Klipsch carrying case, which is one of the best out there.PerformanceWhen it comes to their sound, it's pretty simple: If you like bass, you'll like Klipsch's R6i headphones. And if you like a lot of bass, you may love them.Yes, they're very bassy, and even the midrange is warmed up and rich. Bass fullness, oomph, and power are more plentiful you'll get from many similarly priced in-ear models, but the downside is that treble definition is lacking.