Moondrop Joker headphones are monitoring headphones based on a dynamic driver of no less than Ø50mm. Its 106dB sensitivity and 68 ohm impedance make it easy to drive. Overall, these headphones offer detailed sound reproduction thanks to their FEA (Finite Element Analysis)-optimized magnetic circuit architecture and semi-rigid composite diaphragm.,Moondrop Joker headphones are monitoring headphones based on a dynamic driver of no less than Ø50m