HIFIMAN SUNDARA (Over-Ear) Open-Back Planar Magnetic Headphones 100% PRODUK RESMI 100% PRODUK ORIGINAL GARANSI RESMI 1 TAHUN HifiMan Sundara headphones feature an all new innovative headband design for an accurate fit and increased comfort. The all-aluminum ear enclosure is also designed for increased comfort. The newly developed diaphragm that is 80% thinner than HE400, series headphones resulting in a wider frequency response, faster and more detailed. SPECIFICATIONS Frequency Response : 6Hz-75kHz Impedance : 37Ω Sensitivity : 94dB Weight : 372g