As noted, there's an integrated microphone with a single-button remote (no volume controls). That button is a call answer/end button when making cell-phone calls; when playing music, you tap it once to pause or play, twice to skip a track forward, and three times to skip a track back. The microphone should work with all phones but the "remote" functionality won't work with every or tablet, though it should work with all Apple iOS products.
When I reviewed Moshi's Keramo earphones, which feature ceramic housings, I remarked that they were a well-balanced, pretty accurate pair that didn't push the bass too hard. Well, a couple of Moshi's inexpensive earphone models, the Moonrock and this model, definitely deliver a lot of bass -- and it's pretty decent bass.
The Mythro earbuds may not offer quite as much bass and detail as the V-Moda Remix Remote earphones, nor the same build quality, but they're pretty close and cost around $50 less. I also thought their sound was a little more dynamic and they had bigger bass than the Sennheiser CX 215 headphones, which also sound decent for around $30, though that model doesn't have an integrated microphone. And there's the Klipsch S4i II model at around $90, with a more neutral sound and a flat-cord design. (For a complete list of our top in-ear headphones, go here).
Naturally, the Mythro earbuds' sound profile won't appeal to everyone. It's fairly aggressive, so if you like a more laid-back, smoother headphone, you may find these a little fatiguing over longer listening sessions. But for a lot of today's music -- and today's listeners -- the meaty bass will be an appealing trait. To reiterate, a tight seal is essential to maximizing bass response.
It's interesting to see how Moshi started out making stylish midrange earphones and has now moved into the entry-level market with a pair of well-designed earphones with quality sound. The Mythro's sound profile may not be for everybody, but it's a lightweight, attractively model with earbuds that fit comfortably and a built-in microphone and one-button remote. There are some other budget earphones out there, such as the $17 Panasonic RP-HJE355, that are more balanced and bit more laid-back. But if you're a fan of big bass -- and small prices -- you should like the Mythros.