Specially modified for Robinson R22/44 helicopters The Highly praised 7000 series headset now has a hole group of worthy successors - The 8000 series. The Aviation 8000 series has a more compact design. No protruding features that can snag on obstacles and affect safety and the cord is securely encased in the microphone arm. Remarkable Comfort - The broad foam and fluid filled, breathing sealed rings seal effectively, but with minimal pressure distributed over the entire contact surface. The stainless steel sprung headband maintain their resiliency and provide an unbeatable distortion of pressure. Plenty of space for the ears and a low weight! The Aviation 8000 series - has easily accessible controls with inset volume and balance controls in one. This solution lets you compensate for different noise situations and individual variations, such as poor hearing in one ear. Positive Communication - Effective noise attenuation through the entire speech frequency area up to 25dB. A special filter eliminates wind and breath noise Small light weight ambient-noise compensated electret differential microphone with 180 degree rotation. Low impedance, especially adapted for intercoms systems with 5 ohms impedance and an output signal level of 0.4 mV / 250 ohms Broad frequency range to provide the best possible speech recognition, even helicopter noise. Spiral connector cable 0.4 - 1 m long Light weight - 370 grams Tested and approved according to PPE directive 89/686/EEC and applicable European Standards.