Shure -- a company with a long tradition of both excellent headphones and questionable accessories -- is introducing a new iPhone-targeted add-on into its stable called the MPA-3c. The gist of this adapter is that you can plug your high-fidelity Shure earphones into it and magically turn them into a headset for use with a cellphone (oh, and they claim that it delivers "rock star" quality audio). Essentially, $39.99 will get you a microphone and a send/end button that matches your iPhone.

We've got some winners from last week's Shure headphones contest. Ready? Holding your breath! Here they are:

1. Illtron -SE530
2. Christopher Johnston - SE420
3. Chinman - SE310

Winners have already been contacted. Thanks to everyone who entered, and don't worry if you aren't listed in the three above, we've got some more killer contests coming up soon.

P.S. -Expect to see the winners of the mascot contest in the very near future!

Ok, so why should Engadget Mobile get to have all the giveaways, eh? We've got some top o' the line Shure headphones to give away up in here: in order left to right above, the triple driver mack daddy SE530 ($450 MSRP), double driver SE420 ($400 MSRP), and single driver SE310 ($250 MSRP). You probably know how good high end Shures get, so here's your chance to take a pair home. We've got one of each, which you can enter to win by leaving a comment below -- just tell us what you plan to listen to on these bad boys, and you'll be entered. Do mind the rules though, ok?

A few rules (yeah, there are always rules):

• You may only enter this specific giveaway once. If you enter this giveaway more than once you'll be automatically disqualified, etc. (Yes, we have robots that thoroughly check to ensure fairness.) In other words, be careful when commenting and don't submit more than once, ok?
• The prize is open to US entrants only. Sorry world, we didn't make that rule!
  
• Contest is open until 11:59pm EDT on Sunday, May 27st.

P.S. -Those Engadget mobile giveaways again: Helio Ocean, T-Mobile Wing, Samsung UpStage

Now's your chance to cast your ballot for the 2006 Wearable Device of the Year! Our Engadget Awards nominees are listed below, and you've got until 11.59PM EST on Sunday, April 15th to file your vote. You can only vote once, so make it count, and may the best tech win! The nominees: Aliph Jawbone Bluetooth headset, HAL-5 robotic suit, Motorola / Oakley O ROKR, Nike + iPod, Shure E500PTH, and Sony Ericsson MBW-100 Bluetooth watch.

Those audio crazies over at Shure have some new ear candy for you, of the in-the-ear variety. The four new SE headphones weigh about an ounce apiece, and should all do a plenty good job at sound isolation. In the "low end" are the SE210 cans, which retail for $150 and feature a single (read: boring) Hi-Definition MicroSpeaker for kicking out the highs and lows. Next up are the SE310 rockers, which feature a "Tuned BassPort" for enhancing the lows, but'll cost you $250 for the privilege. The SE420 headphones bump it up to the next level, with dedicated tweeter and woofers for a more accurate and a hefty $350 pricetag, while the SE530 crank it to 11 with dual woofers and an internal crossover to keep those highs and lows for bumping into each other. Of course, the $450 pricetag is rather x-treem, and you'll probably need ears of gold to discern some of the differences, but you audiophiles know who you are. An optional push-to-hear accessory is available for all four headphones to let you tune into the outside world when it suites you. You can pick one of these up in February, start saving those pennies.

If you happen to bump into us on the street in the next few days and we can't make out a word you're saying, well, here's why -- we recently had the opportunity to spend plenty of quality time with Shure's latest pride and joy, their flagship E500PTH earphones. Shure's been talking up the E500 for the better part of this year as a "new paradigm" in personal sound, but audioheads (with the prerequisite $500 to burn, that is) have only been able to find 'em in the retail channel for a few weeks now. Much like the E5c before it, Shure bills the E500 as the be-all, end-all solution to portable reference-quality sound reproduction, thanks in no small part to the three -- count 'em, three drivers in each bud. But unlike the E5c, the E500 has an arguably more compelling trick up its sleeve: its unique push-to-hear (PTH) module, which allows the wearer to switch between audio input and ambient sound at the flick of a switch. While our poor, buzzing ears are recovering from the constant barrage of sweet sounds they received in the name of conducting a proper writeup, we figure we'd hunker down and actually get this thing written, so read on for our full pictorial review.

You want boasting rights and flattering amounts of auditory detail? Look no further than Shure's E500PTH, what's shaping up to be the most hyped and wildly anticipated (or so we're led to believe) earphones of the season. Oh, did we mention they're finally shipping? Sorry kids, only in the UK for now. We spotted these flagship 'buds at CES and now Shure obviously intends to deliver, albeit a few months later than expected. Housing two woofer drivers and one tweeter, the design promises to "change personal audio the way HDTV changed television" (saywha?). Easily among the most elaborate of assurances we've heard, the E500PTH has a lot to prove: the Push-to-Hear (no, this isn't the flipside of PTT) technology lowers music volume to let "environmental ambiance" (um, noise?) seep in, while flipping a switch activates a "so real, you're there" vibe providing two ways to groove. If style's your thing, the E500PTH sports a black and chrome outfit and maintains a low-profile while blocking up to 37db of outside interference (until you hit the PTH switch, of course). If you're ready to hear the touted "revolution" in sound, listen up: this aural pleasure won't come cheap. For the Brits who can grab these immediaitely, it'll cost you £419, while Americans must await a late-July ship date to drop their $500.