The Skullcandy UpRock Headphones With Microphone in the S5URGY-398-PS model are stylish green headphones with a 40mm driver size for powerful sound quality. With an adjustable headband and on-ear design, these headphones provide comfort and convenience for long periods of use. The 103 decibel sensitivity and 20 - 20,000 KHz frequency response ensure crisp and clear audio, while the 3.5mm jack connectivity allows for easy connection to various devices. Perfect for music lovers or communication enthusiasts, these Skullcandy headphones are a versatile and reliable choice.