Sony AS210 Sport In-Ear Headphones
The AS210 Sport In-Ear Headphones from Sony feature adjustable loop hangers for a secure fit while playing sports, a 3.9' cord for room to move, and 0.5" drivers that deliver an optimized frequency range. The headphones are water resistant for all-weather listening and can be used to enjoy your favorite music while you exercise.
They have a frequency response of 17 Hz to 22 kHz and deliver music that sounds clear and detailed. Their open acoustic design helps air flow in, out, and through the back for a more natural sound.