Audio-Technica ATH-CKS990iS Solid Bass In-Ear Headphones w/ In-line Mic, Red General Information 
With newly designed drivers and in-line mic and control, the ATH-CKS990iS Solid Bass in-ear headphones give you portable, smartphone-compatible headphones with refined bass reproduction. The powerful 13 mm Dual Magnetic-Field Drivers feature an extra magnet in front of the driver to create a concentrated magnetic field that helps produce full, textured bass without distortion. Audio-Technica's specially designed Multiple-Transition Diaphragms with a diamond-like carbon coating add to the power and precision of the bass, as does the new Dual Bass Venting System, which utilizes two optimally placed vents in each housing for excellent air damping. The housings themselves are constructed of machined aluminum to reduce unwanted resonance and extend mid-to-high frequency response. 

The 1.2 m (3. 9') cable is comprised of two separate star-quad cables, one dedicated to the left channel, the other to the right, which improves isolation from external noise and channel cross talk. The cable also includes an in-line mic and control that lets you answer calls and control music and video on your smartphone or other portable device. The ATH-CKS990iS comes with four sizes of silicone eartips (XS/S/M/L) that fit onto the headphones' two-position posts, supplying a custom fit with outstanding sound isolation. A convenient carrying case is also included.
 
Additional Product Specifications 
Full Product Specifications: Click to view
 
Technical Information 
Connectivity Technology: Wired
Cable Length: 3.94 ft
Sound Mode: Stereo
Impedance: 50 Ohm
Minimum Frequency Response: 5 Hz
Maximum Frequency Response: 28 kHz
Features: Powerful Bass
Features: Sound Isolation
 
Earpiece 
Earpiece Design: Earbud
Earpiece Type: Binaural
Driver Size: 0.51"
 
Microphone 
Microphone Design: On-cable
 
Interfaces/Ports 
Host Interface: Mini-phone
 
Physical Characteristics 
Color: Black
Form Factor: In-ear
Weight (Approximate): 0.35 oz
 
Miscellaneous 
Package Contents:
Solid Bass In-Ear Headphones with In-line Mic & Control
Silicone eartips (XS/S/M/L)
Carrying case