Playback frequency:10~30,000Hz. Maximum input:1000 mWnImpedance:32Ω. Sound pressure sensitivity:95dB/mW.nDriver unit:40mm diameter. Weight:about 191g(Including code).nCord length: about 1.2m. Folding.nHigh-quality, lightweight and tylish design!n■This is a high quality design that uses a bio-cellulose diaphragm.