The Sennheiser E935 is a handheld cardioid vocal microphone with a tailored frequency response suitable for vocal and performance applications. The E935's cardioid design effectively rejects off axis noise and feedback while an integral hum compensation coil minimizes hum caused by electrical current, bad grounds etc. It's 40-16,000Hz frequency response is tailored for vocal use and the neodymium capsule withstands extreme sound pressure levels. The shock mounted capsule and rugged metal enclosure provide durability in the studio or on the road. With 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.