The K 240 Studio headphones from AKG feature a semi-open circumaural design, and use patented Varimotion technology and extra-large transducers to deliver extremely precise, detailed sound.

The headphones have a self-adjusting headband, as well as thick around-ear cushions for lasting comfort. The single-sided detachable straight cable resists tangles and can be easily replaced. The cable has a gold-plated 3.5mm plug with a 1/4" screw-on adapter to provide wide compatibility with consumer and professional audio devices.

Features:
Semi-open, circumaural design
XXL speakers with patented Varimotion technology for crisp, detailed sound
Self-adjusting headband fits virtually any head size
Thick around-ear cushions for lasting comfort
Single-sided detachable cable resists tangles and offers easy replacement
Gold-plated stereo 3.5mm mini plug with 1/4" adapter for compatibility with a variety of consumer and professional devices

AKG K 240 Specs:
Headphone
Driver Type Dynamic
Design Over-Ear (Circumaural)
Earcup Style Semi-Open-Back
General
Frequency Response 15 Hz to 25 kHz
Sensitivity 91 dB
Impedance 55 Ohms
Maximum Power Handling 200 mW
Connectivity
Audio Connector to Source 1/8" / 3.5 mm TRS
Connector Plating Gold
Adapter (Included) 1/4"
Cable
Detachable Yes
Cable Length 9.8' /  m
Physical
Weight 8.5 oz / 240 g
Packaging Info
Package Weight 1.215 lb
Box Dimensions (LxWxH) 9.25 x 8.8 x 4.35"

(AKG K-240 STUDIO)