Features:

• Folding construction is compact and portable
• Acoustic Twin Turbo circuitry delivers powerful bass sound and high efficiency
• Moisture Guard mechanism pulls sweat away from the ear canal
• Comfortable vertical, in-the-ear design
• Water resistant for outdoor use

Editor Reviews:

Product Description:
lightweight, folding vertical design * water-resistant S2 Sports design * open earpieces * Acoustic Twin Turbo circuit * frequency response: 20-20,000 Hz * impedance: 16 ohms * 4-foot oxygen-free copper cord with right-angle, gold-plated mini plug * impedance: 16 ohms * weight: 0.7 oz. * warranty: 90 days

Amazon.com Product Description:
These Sony headphones are super-lightweight, comfortable and safe. They have been designed with Sony's Sports Walkman series in mind. The MDR-A35G stereo headphones have a thin, lightweight and adjustable headband which allow you to fit them perfectly to your head's shape. The headphones are foldable (via three hinges) which allow for greater transportability; you can pack these away in your workout bag or in a jeans pocket. The moisture guard mechanism pulls sweat away from the ear canal, keeping your headphones drier and thus, better fitting and sounding. If you plan on listening to your MP3 player or radio while treadmilling in the gym, this feature will be greatly appreciated. The headphones are also water resistant; runners in wet environs will certainly find this advantageous.

The open-air design removes undesirable resonance by allowing outside air to pass through the headphones; the result is a better sounding headphone. The open-air design is also a key factor in keeping you safe while you exercise. The headphones allow outside noises like horns, passing bikers and oncoming dogs to meet your ears, even with music playing. With sixteen millimeter drivers, although miniscule, you can expect to hear a good bass sound. Neodymium magnets, a rare feature on such economically priced headphones, provide maximum energy with minimal size. Meanwhile, the Sony Acoustic Turbo circuit is included for high efficiency; it gets high sonic output from your portable stereo, and extends bass response.

The MDR-A35G's oxygen-free copper (OFC) Y-style cord is double-sided and is 3.9 feet long, allowing for ample movement and separation from the sound source. The gold-plated, L-shaped stereo mini-plug fits mini-plug jacks, not the full-size stereo jacks. The headphones are a flat black color.

What's in the Box
Sony MDR-A35G headphones

Rating : - Pretty Good Work Out Earphones
I work out regularly and need to listen to music while I do. Earbuds don't get it, too much adjusting.
I've gone through a bunch of these earphones, and they are the BEST for active workouts, except for the flimsy temple pieces: they ultimately break, no matter how careful I am, sometimes in the first couple of weeks, sometimes they've lasted 9 months.
So, I got the Sony MDR-W24V Vertical In-The-Ear Headphones the same time I bought these, and they seem to be holding up a little better. The MDR-W42V's have an inline volume control, too. Get those instead.