Features:

• Open-air, dynamic headphones which fit comfortably in the ear
• 13.5 mm diameter for small size and sound quality
• Nickel-plated mini-plug is L-shaped
• Slim headband to keep headphones snug
• 3.3 foot cord (1 meter) for ease of movement

Editor Reviews:

Product Description:
Vertical In-Ear Stereo Headphones minimizes size and weight for maximum comfort 3.3 foot cord Weighs 0.5 oz (13g), without cord

Amazon.com Product Description:
The MDR-W08L headphones fit inside the ear for jostle-free listening. Created for active listeners, these headphones are better held in place with the wide, over-the-head headband. They are extremely lightweight (.5 ounces) and will provide hours of comfortable listening.

Sony uses 13.5 mm driver units in these headphones. While lightweight and small enough to fit inside the ear, they also deliver a good bass sound and wide frequency range (down to 20 Hz.) Neodymium magnets give the headphones maximum energy at a minimal size and weight. The open-air design allows for ambient noise to enter the ear, a safe feature for exercisers as you will hear car horns, passing bikers and dog barks. The cord is one meter long (3.3 feet) and the nickel-plated mini-plug offers crisp sound delivery. The headphones are a modern black color.

What's in the Box
Sony MDR-W08L headphones

Rating : - AWESOME!
I have been using this style of earphones for 6 years of jogging/working out. Granted I buy a new pair roughly every 2 years, you cannot find anything more comfy and with the same sound quality. Don't waste your dough on anything else.