Come and be friends with the local tyrants~ The exquisite design from Sweden, hand-built by skilled goldsmiths in Stockholm, is really a lot of gold! - Of course, the earplugs are molded in 18-carat gold, and 25 grams are used on each pair of headphones. Wear gold glitter! Basic parameters: Unit: 14, 8mm Frequency response: 20 Hz-50kHz Impedance: 32+15% Sensitivity: 110+3dB Maximum input power: 10mW